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<title>Sebaceous hyperplasia</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Sebaceous hyperplasia</span></span>

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</style><table class="infobox infobox-has-images-with-white-backgrounds"><tbody><tr><th colspan="2" class="infobox-above" style="background:#ccc">Sebaceous hyperplasia</th></tr><tr><td colspan="2" class="infobox-full-data"></td></tr><tr><td colspan="2" class="infobox-full-data">Sebaceous hyperplasia in 55-year-old woman. Diagnosis was histologically verified.</td></tr><tr><th scope="row" class="infobox-label"><a href="Medical_specialty" title="Medical specialty">Specialty</a></th><td class="infobox-data"><a href="Dermatology" title="Dermatology">Dermatology</a></td></tr></tbody></table><style data-mw-deduplicate="TemplateStyles:r1236303919">

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<p><b>Sebaceous hyperplasia</b> is a disorder of the <a href="Sebaceous_gland" title="Sebaceous gland">sebaceous glands</a> in which they become enlarged, producing flesh-colored or yellowish, shiny, often umbilicated bumps.<sup id="cite_ref-Andrews_1-0" class="reference"><a href="#cite_note-Andrews-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Sebaceous hyperplasia, primarily affecting older patients in high-concentration areas like the face, head, and neck, typically has a 2-4 mm diameter and causes no symptoms. The lesions are often surrounded by <a href="Telangiectasia" title="Telangiectasia">telangiectatic</a> <a href="Blood_vessel" title="Blood vessel">blood vessels</a>, also known as "crown vessels," and a central dell, which is in line with the origin of the lesions.

</p><p><a href="Sebaceous_gland" title="Sebaceous gland">Sebaceous glands</a> are glands located within the <a href="Skin" title="Skin">skin</a> and are responsible for secreting an oily substance named <a href="Sebum" class="mw-redirect" title="Sebum">sebum</a>. They are commonly associated with <a href="Hair_follicle" title="Hair follicle">hair follicles</a> but they can be found in hairless regions of the skin as well. Their secretion lubricates the skin, protecting it from drying out or becoming irritated.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p><p>Murine studies suggest topical irritants and <a href="Carcinogen" title="Carcinogen">carcinogens</a> may contribute to sebaceous hyperplasia development, with <a href="Immunosuppression" title="Immunosuppression">immunosuppression</a> with <a href="Cyclosporin_A" class="mw-redirect" title="Cyclosporin A">cyclosporin A</a> or <a href="HIV" title="HIV">HIV</a> infection increasing the likelihood.

</p><p>Sebaceous hyperplasia is a condition that can be diagnosed clinically but requires a <a href="Biopsy" title="Biopsy">biopsy</a> for confirmation. It shares similarities with folliculosebaceous unit architecture but has larger and expanded <a href="Sebaceous_gland" title="Sebaceous gland">sebaceous glands</a>. Identifying sebaceous hyperplasia using <a href="Dermatoscopy" title="Dermatoscopy">dermatoscopy</a> can help identify it from other lesions. The dermoscopic characteristics include "crown vessels" clusters of white or yellow <a href="Nodule_(medicine)" title="Nodule (medicine)">nodules</a>, a distinct asymmetrical milky-white structure called the cumulus sign, and a central umbilication called the "bonbon toffee sign."

</p><p>Sebaceous hyperplasia treatment involves various techniques like <a href="Cryotherapy" title="Cryotherapy">cryotherapy</a>, <a href="Dichloroacetic_acid" title="Dichloroacetic acid">bichloroacetic acid</a>, shave excision, <a href="Carbon-dioxide_laser" title="Carbon-dioxide laser">carbon dioxide laser</a> ablation, <a href="Electrodesiccation_and_curettage" title="Electrodesiccation and curettage">electrodessication</a>, erbium/yttrium aluminum garnet laser ablation, and <a href="Pulsed_dye_laser" class="mw-redirect" title="Pulsed dye laser">pulsed-dye laser</a> photothermolysis.

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<div class="mw-heading mw-heading2"><h2 id="Signs_and_symptoms">Signs and symptoms</h2></div>

<p>Sebaceous hyperplasia primarily affects older patients in areas with high concentrations of <a href="Sebaceous_gland" title="Sebaceous gland">sebaceous glands</a>, such as the face, head, and neck.<sup id="cite_ref-senile_comedones_3-0" class="reference"><a href="#cite_note-senile_comedones-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> It typically manifests as yellowish-colored skin with small <a href="Papule" title="Papule">papules</a> that are often surrounded by telangiectatic blood vessels, also known as "crown vessels," and a central dell that is in line with the origin of the lesions, which is a dilated central follicular infundibulum.<sup id="cite_ref-Autoradiographic_4-0" class="reference"><a href="#cite_note-Autoradiographic-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-sebaceous_neoplasia_5-0" class="reference"><a href="#cite_note-sebaceous_neoplasia-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Most lesions have a diameter of 2-4 mm and cause no symptoms.<sup id="cite_ref-Hogan_2011_6-0" class="reference"><a href="#cite_note-Hogan_2011-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Causes">Causes</h2></div>

<p>Although the etiology is unknown, murine studies have revealed that topical irritants and <a href="Carcinogen" title="Carcinogen">carcinogens</a> may be involved in the development of sebaceous hyperplasia.<sup id="cite_ref-k819_7-0" class="reference"><a href="#cite_note-k819-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-w404_8-0" class="reference"><a href="#cite_note-w404-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>

</p><p><a href="Immunosuppression" title="Immunosuppression">Immunosuppression</a> with <a href="Ciclosporin" title="Ciclosporin">cyclosporin A</a><sup id="cite_ref-i907_9-0" class="reference"><a href="#cite_note-i907-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> or <a href="HIV" title="HIV">HIV</a> infection increases the likelihood of developing sebaceous hyperplasia significantly.<sup id="cite_ref-o244_10-0" class="reference"><a href="#cite_note-o244-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Diagnosis">Diagnosis</h2></div>

<p>Although sebaceous hyperplasia can be diagnosed clinically, a <a href="Biopsy" title="Biopsy">biopsy</a> is necessary for confirmation in cases of doubt.<sup id="cite_ref-a901_11-0" class="reference"><a href="#cite_note-a901-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> The differential diagnosis for sebaceous hyperplasia includes <a href="Nevus_sebaceous" title="Nevus sebaceous">nevus sebaceous</a>, <a href="Sebaceous_carcinoma" title="Sebaceous carcinoma">sebaceous carcinoma</a>, <a href="Sebaceous_adenoma" title="Sebaceous adenoma">sebaceous adenoma</a>, <a href="Basal-cell_carcinoma" title="Basal-cell carcinoma">basal cell carcinoma</a>, <a href="Molluscum_contagiosum" title="Molluscum contagiosum">molluscum contagiosum</a>, and small <a href="Epidermal_inclusion_cyst" class="mw-redirect" title="Epidermal inclusion cyst">epidermal inclusion cysts</a>.<sup id="cite_ref-Hogan_2011_6-1" class="reference"><a href="#cite_note-Hogan_2011-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>

</p><p>Sebaceous hyperplasia shares histopathological similarities with the typical architecture of the folliculosebaceous unit, but with larger and expanded <a href="Sebaceous_gland" title="Sebaceous gland">sebaceous glands</a>.<sup id="cite_ref-Tissue_measurements_12-0" class="reference"><a href="#cite_note-Tissue_measurements-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-associated_syndromes_13-0" class="reference"><a href="#cite_note-associated_syndromes-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup>

</p><p>To help identify sebaceous hyperplasia from other lesions, <a href="Dermatoscopy" title="Dermatoscopy">dermatoscopy</a> may be utilized. A cluster of white or yellow <a href="Nodule_(medicine)" title="Nodule (medicine)">nodules</a> encircled by tiny, nonarborizing branching vessels known as "crown vessels" are among the dermoscopic characteristics of sebaceous hyperplasia.<sup id="cite_ref-Dermoscopic_Differential_14-0" class="reference"><a href="#cite_note-Dermoscopic_Differential-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Dermoscopy_15-0" class="reference"><a href="#cite_note-Dermoscopy-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> On <a href="Dermatoscopy" title="Dermatoscopy">dermatoscopy</a>, a distinct asymmetrical milky-white structure known as the cumulus sign has been identified in cases with sebaceous hyperplasia. Unlike the traditional crown vessels, some writers describe the blood vessels as "multiple tree-like branches."<sup id="cite_ref-Dermatoscopic_features_16-0" class="reference"><a href="#cite_note-Dermatoscopic_features-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> A central umbilication encircled by the cumulus sign was another distinguishing characteristic of dermatoscopy; the authors dubbed this the "bonbon toffee sign."<sup id="cite_ref-Bonbon_toffee_sign_17-0" class="reference"><a href="#cite_note-Bonbon_toffee_sign-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Treatment">Treatment</h2></div>

<p>Treatment for sebaceous hyperplasia is carried out for cosmetic reasons. There are numerous techniques that have been reported, including <a href="Cryotherapy" title="Cryotherapy">cryotherapy</a>, <a href="Bichloroacetic_acid" class="mw-redirect" title="Bichloroacetic acid">bichloroacetic acid</a>, shave excision, <a href="Carbon-dioxide_laser" title="Carbon-dioxide laser">carbon dioxide laser</a> ablation, electrodessication, erbium or yttrium aluminum garnet laser ablation, and <a href="Pulsed_dye_laser" class="mw-redirect" title="Pulsed dye laser">pulsed-dye laser</a> photothermolysis.<sup id="cite_ref-x127_18-0" class="reference"><a href="#cite_note-x127-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Additional_photos">Additional photos</h2></div>

<div class="gallerytext">Photography of sebaceous hyperplasia, showing a group of papules, in this case on the chest with linear distribution pattern.</div>

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<div class="gallerytext">Dermoscopy of sebaceous hyperplasia. Note the aggregation of yellowish-white clods with linear vessels between or above the clods.</div>

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<div class="gallerytext">Dermoscopy of sebaceous hyperplasia with digital <a href="High_dynamic_range" title="High dynamic range">high dynamic range</a>. Note the multi-lobulated clods with central openings.</div>

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<div class="gallerytext"><a href="H%26E_staining" class="mw-redirect" title="H&E staining">H&E staining</a> of biopsied lesion of sebaceous hyperplasia: Note the multiple, mature sebaceous lobules attached to the central dilated duct in the upper dermis.</div>

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<div class="gallerytext">Sebaceous hyperplasia, lateral right temple marked for biopsy with adjacent malignant melanoma in situ, evolving, medial right temple</div>

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<div class="gallerytext">Sebaceous hyperplasia with surrounding chronic folliculitis, right mid chest</div>

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<ul><li><a href="Sebaceous_adenoma" title="Sebaceous adenoma">Sebaceous adenoma</a></li>

<li><a href="Sebaceous_carcinoma" title="Sebaceous carcinoma">Sebaceous carcinoma</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite id="CITEREFJames,_William_D.Berger,_Timothy_G.2006" class="citation book cs1">James, William D.; Berger, Timothy G.; et al. (2006). <i>Andrews' Diseases of the Skin: Clinical Dermatology</i>. Saunders Elsevier. p. 662. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-7216-2921-6</bdi>.</cite></span>

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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFJo_Ann_Coers_EurellBrian_L._Frappier2006" class="citation book cs1">Jo Ann Coers Eurell; Brian L. Frappier (2006). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=FnS4uiOlRT0C&pg=PA29"><i>Dellmann's textbook of veterinary histology</i></a>. Wiley. p. 29. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>9780781741484</bdi>.</cite></span>

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<li id="cite_note-senile_comedones-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-senile_comedones_3-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFKumarMarks1987" class="citation journal cs1">Kumar, P.; Marks, R. (1987). "Sebaceous gland hyperplasia and senile comedones: a prevalence study in elderly hospitalized patients". <i>British Journal of Dermatology</i>. <b>117</b> (2): <span class="nowrap">231–</span>236. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1365-2133.1987.tb04121.x">10.1111/j.1365-2133.1987.tb04121.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0007-0963">0007-0963</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/2958079">2958079</a>.</cite></span>

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<li id="cite_note-Autoradiographic-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-Autoradiographic_4-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFLuderschmidtPlewig1978" class="citation journal cs1">Luderschmidt, Christoph.; Plewig, Gerd. (1978). <a rel="nofollow" class="external text" href="https://doi.org/10.1111%2F1523-1747.ep12541329">"Circumscribed Sebaceous Gland Hyperplasia: Autoradiographic and Histoplanimetric Studies"</a>. <i>Journal of Investigative Dermatology</i>. <b>70</b> (4). Elsevier BV: <span class="nowrap">207–</span>209. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1111%2F1523-1747.ep12541329">10.1111/1523-1747.ep12541329</a></span>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0022-202X">0022-202X</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/641372">641372</a>.</cite></span>

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<li id="cite_note-sebaceous_neoplasia-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-sebaceous_neoplasia_5-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFTetzlaffNorthEsmaeli2019" class="citation journal cs1">Tetzlaff, Michael T.; North, Jeffrey; Esmaeli, Bita (2019). "Update on sebaceous neoplasia: the morphologic spectrum and molecular genetic drivers of carcinoma". <i>Diagnostic Histopathology</i>. <b>25</b> (3). Elsevier BV: <span class="nowrap">102–</span>109. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.mpdhp.2019.01.001">10.1016/j.mpdhp.2019.01.001</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1756-2317">1756-2317</a>.</cite></span>

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<li id="cite_note-Hogan_2011-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-Hogan_2011_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Hogan_2011_6-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFHoganMohammad2011" class="citation journal cs1">Hogan, Daniel; Mohammad, Samya (2011). "Sebaceous hyperplasia". <i>Expert Review of Dermatology</i>. <b>6</b> (1): <span class="nowrap">91–</span>96. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1586%2Fedm.11.2">10.1586/edm.11.2</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1746-9872">1746-9872</a>.</cite></span>

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<li id="cite_note-k819-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-k819_7-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFItoMotoyoshiSuzukiSato1985" class="citation journal cs1">Ito, Masaaki; Motoyoshi, Katsuhiro; Suzuki, Megumi; Sato, Yoshio (1985). <a rel="nofollow" class="external text" href="https://doi.org/10.1111%2F1523-1747.ep12276720">"Sebaceous Gland Hyperplasia on Rabbit Pinna Induced by Tetradecane"</a>. <i>Journal of Investigative Dermatology</i>. <b>85</b> (3). Elsevier BV: <span class="nowrap">249–</span>254. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1111%2F1523-1747.ep12276720">10.1111/1523-1747.ep12276720</a></span>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0022-202X">0022-202X</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/2411823">2411823</a>.</cite></span>

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<li id="cite_note-w404-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-w404_8-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFRiceAnderson1986" class="citation journal cs1">Rice, Jerry M.; Anderson, Lucy M. (1986). "Sebaceous adenomas with associated epidermal hyperplasia and papilloma formation as a major type of tumor induced in mouse skin by high doses of carcinogens". <i>Cancer Letters</i>. <b>33</b> (3). Elsevier BV: <span class="nowrap">295–</span>306. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2F0304-3835%2886%2990069-8">10.1016/0304-3835(86)90069-8</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0304-3835">0304-3835</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/3100020">3100020</a>.</cite></span>

</li>

<li id="cite_note-i907-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-i907_9-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFBoschnakowMayAssafTebbe2003" class="citation journal cs1">Boschnakow, A.; May, T.; Assaf, C.; Tebbe, B.; Zouboulis, CH.C. (2003). "Ciclosporin A-induced sebaceous gland hyperplasia". <i>British Journal of Dermatology</i>. <b>149</b> (1). Oxford University Press (OUP): <span class="nowrap">198–</span>200. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1046%2Fj.1365-2133.2003.05397.x">10.1046/j.1365-2133.2003.05397.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0007-0963">0007-0963</a>.</cite></span>

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<li id="cite_note-o244-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-o244_10-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFShortWilliamsCreamerFuller2008" class="citation journal cs1">Short, K. A.; Williams, A.; Creamer, D.; Fuller, L. C. (2008). "Sebaceous gland hyperplasia, human immunodeficiency virus and highly active anti-retroviral therapy". <i>Clinical and Experimental Dermatology</i>. <b>33</b> (3): <span class="nowrap">354–</span>355. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1365-2230.2007.02670.x">10.1111/j.1365-2230.2007.02670.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0307-6938">0307-6938</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/18346183">18346183</a>.</cite></span>

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<li id="cite_note-a901-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-a901_11-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFLimCusackKist2014" class="citation journal cs1">Lim, Geoffrey F.S.; Cusack, Carrie Ann R.; Kist, Joseph M. (2014). "Perioral Lesions and Dermatoses". <i>Dental Clinics of North America</i>. <b>58</b> (2). Elsevier BV: <span class="nowrap">401–</span>435. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.cden.2013.12.009">10.1016/j.cden.2013.12.009</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0011-8532">0011-8532</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/24655530">24655530</a>.</cite></span>

</li>

<li id="cite_note-Tissue_measurements-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-Tissue_measurements_12-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFKumarBartonMarks1988" class="citation journal cs1">Kumar, P.; Barton, S.P.; Marks, R. (1988). "Tissue measurements in senile sebaceous gland hyperplasia". <i>British Journal of Dermatology</i>. <b>118</b> (3): <span class="nowrap">397–</span>402. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1365-2133.1988.tb02434.x">10.1111/j.1365-2133.1988.tb02434.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0007-0963">0007-0963</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/3355781">3355781</a>.</cite></span>

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<li id="cite_note-associated_syndromes-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-associated_syndromes_13-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFEisenMichael2009" class="citation journal cs1">Eisen, Daniel B.; Michael, Daniel J. (2009). "Sebaceous lesions and their associated syndromes: Part I". <i>Journal of the American Academy of Dermatology</i>. <b>61</b> (4): <span class="nowrap">549–</span>560. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.jaad.2009.04.058">10.1016/j.jaad.2009.04.058</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/19751879">19751879</a>.</cite></span>

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<li id="cite_note-Dermoscopic_Differential-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-Dermoscopic_Differential_14-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFKimZellKolmOliviero2008" class="citation journal cs1">Kim, Nancy H.; Zell, Deborah S.; Kolm, Isabel; Oliviero, Margaret; Rabinovitz, Harold S. (2008-07-01). "The Dermoscopic Differential Diagnosis of Yellow Lobularlike Structures". <i>Archives of Dermatology</i>. <b>144</b> (7). American Medical Association (AMA). <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1001%2Farchderm.144.7.962">10.1001/archderm.144.7.962</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0003-987X">0003-987X</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/18645159">18645159</a>.</cite></span>

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<li id="cite_note-Dermoscopy-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-Dermoscopy_15-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFZaballosAraPuigMalvehy2005" class="citation journal cs1">Zaballos, Pedro; Ara, Mariano; Puig, Susana; Malvehy, Josep (2005-06-01). "Dermoscopy of Sebaceous Hyperplasia". <i>Archives of Dermatology</i>. <b>141</b> (6). American Medical Association (AMA). <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1001%2Farchderm.141.6.808">10.1001/archderm.141.6.808</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0003-987X">0003-987X</a>.</cite></span>

</li>

<li id="cite_note-Dermatoscopic_features-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-Dermatoscopic_features_16-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFBrydenDaweFleming2004" class="citation journal cs1">Bryden, A. M.; Dawe, R. S.; Fleming, C. (2004). "Dermatoscopic features of benign sebaceous proliferation". <i>Clinical and Experimental Dermatology</i>. <b>29</b> (6). Oxford University Press (OUP): <span class="nowrap">676–</span>677. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1365-2230.2004.1612.x">10.1111/j.1365-2230.2004.1612.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0307-6938">0307-6938</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/15550152">15550152</a>.</cite></span>

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<li id="cite_note-Bonbon_toffee_sign-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-Bonbon_toffee_sign_17-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFOztasPolatOztasAlli2008" class="citation journal cs1">Oztas, P; Polat, M; Oztas, M; Alli, N; Ustun, H (2008-09-10). "Bonbon toffee sign: a new dermatoscopic feature for sebaceous hyperplasia". <i>Journal of the European Academy of Dermatology and Venereology</i>. <b>22</b> (10). Wiley: <span class="nowrap">1200–</span>1202. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1468-3083.2008.02827.x">10.1111/j.1468-3083.2008.02827.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0926-9959">0926-9959</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/18540985">18540985</a>.</cite></span>

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<li id="cite_note-x127-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-x127_18-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFNoMcClarenChotzenKilmer2004" class="citation journal cs1">No, David; McClaren, Marla; Chotzen, Vera; Kilmer, Suzanne L. (2004). "Sebaceous Hyperplasia Treated With a 1450-nm Diode Laser". <i>Dermatologic Surgery</i>. <b>30</b> (3): <span class="nowrap">382–</span>384. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1524-4725.2004.30105.x">10.1111/j.1524-4725.2004.30105.x</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1076-0512">1076-0512</a>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/15008865">15008865</a>.</cite></span>

</li>

</ol></div></div>

<div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2></div>

<ul><li><cite class="citation journal cs1">Tagliolatto, Sandra; Santos Neto, Octavio de Oliveira; Alchorne, Maurício Mota de Avelar; Enokihara, Mauro Yoshiaki (2015). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4371670">"Sebaceous hyperplasia: systemic treatment with isotretinoin"</a>. <i>Anais Brasileiros de Dermatologia</i>. <b>90</b> (2). FapUNIFESP (SciELO): <span class="nowrap">211–</span>215. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1590%2Fabd1806-4841.20153192">10.1590/abd1806-4841.20153192</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0365-0596">0365-0596</a>. <a href="PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4371670">4371670</a></span>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/25830991">25830991</a>.</cite></li>

<li><cite class="citation journal cs1">Kim, Jae-Hong; Park, Hwa-Young; Lee, Won-Soo; Kang, Jin-Soo (2013). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3662930">"Sebaceous Hyperplasia Effectively Improved by the Pin-Hole Technique with Squeezing"</a>. <i>Annals of Dermatology</i>. <b>25</b> (2). Korean Dermatological Association and The Korean Society for Investigative Dermatology: 257. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.5021%2Fad.2013.25.2.257">10.5021/ad.2013.25.2.257</a>. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1013-9087">1013-9087</a>. <a href="PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3662930">3662930</a></span>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/23717028">23717028</a>.</cite></li></ul>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://dermnetnz.org/topics/sebaceous-hyperplasia">DermNet</a></li>

<li><a rel="nofollow" class="external text" href="https://my.clevelandclinic.org/health/diseases/22670-sebaceous-hyperplasia">Cleveland Clinic</a></li></ul>

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</style></div><div role="navigation" class="navbox" aria-label="Navbox32" style="width:100%; margin:0.5em 0 0.5em 0;;padding:3px"><table class="nowraplinks navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">Classification</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><div style="position:relative; float:right; font-size:0.8em;"><a href="https://www.wikidata.org/wiki/Q7442322" class="extiw external" title="d:Q7442322">D</a></div><div class="hlist" style="text-align:left;"><ul><li><b><a href="International_Statistical_Classification_of_Diseases_and_Related_Health_Problems" class="mw-redirect" title="International Statistical Classification of Diseases and Related Health Problems">ICD</a>-<a href="ICD-11" title="ICD-11">11</a></b>: <a rel="nofollow" class="external text" href="https://icd.who.int/browse/latest-release/mms/en#370989014">ED91.1</a></li><li><b><a href="International_Statistical_Classification_of_Diseases_and_Related_Health_Problems" class="mw-redirect" title="International Statistical Classification of Diseases and Related Health Problems">ICD</a>-<a href="ICD-10" title="ICD-10">10</a></b>: <a rel="nofollow" class="external text" href="https://icd.who.int/browse10/2019/en#/L73.8">L73.8</a></li><li><b><a href="International_Statistical_Classification_of_Diseases_and_Related_Health_Problems" class="mw-redirect" title="International Statistical Classification of Diseases and Related Health Problems">ICD</a>-<a href="List_of_ICD-9_codes" title="List of ICD-9 codes">9-CM</a></b>: <a rel="nofollow" class="external text" href="http://www.icd9data.com/getICD9Code.ashx?icd9=706.9">706.9</a></li><li><b><a href="Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></b>: <a rel="nofollow" class="external text" href="https://omim.org/entry/601700">601700</a></li><li><b><a href="Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a></b>: <a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?ui=C537530">C537530</a></li><li><b><a href="SNOMED_CT" title="SNOMED CT">SNOMED CT</a></b>: <a rel="nofollow" class="external text" href="https://browser.ihtsdotools.org/?perspective=full&conceptId1=238748009&languages=en">238748009</a></li></ul></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">External resources</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><div class="hlist" style="text-align:left;"><ul><li><b><a href="EMedicine" title="EMedicine">eMedicine</a></b>: <a rel="nofollow" class="external text" href="https://emedicine.medscape.com/article/1059368-overview">article/1059368</a></li><li><b>Scholia</b>: <a class="external text external" href="https://tools.wmflabs.org/scholia/topic/Q7442322">Q7442322</a></li></ul></div></div></td></tr></tbody></table></div>

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</style><div id="Disorders_of_skin_appendages114" style="font-size:114%;margin:0 4em">Disorders of <a href="Skin_appendage" title="Skin appendage">skin appendages</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Nail_disease" title="Nail disease">Nail</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li>thickness: <a href="Onychogryphosis" title="Onychogryphosis">Onychogryphosis</a></li>

<li><a href="Onychauxis" title="Onychauxis">Onychauxis</a></li></ul>

<ul><li>color: <a href="Beau's_lines" title="Beau's lines">Beau's lines</a></li>

<li><a href="Yellow_nail_syndrome" title="Yellow nail syndrome">Yellow nail syndrome</a></li>

<li><a href="Leukonychia" title="Leukonychia">Leukonychia</a></li>

<li><a href="Blue_nails" title="Blue nails">Azure lunula</a></li></ul>

<ul><li>shape: <a href="Koilonychia" title="Koilonychia">Koilonychia</a></li>

<li><a href="Nail_clubbing" title="Nail clubbing">Nail clubbing</a></li></ul>

<ul><li>behavior: <a href="Onychotillomania" title="Onychotillomania">Onychotillomania</a></li>

<li><a href="Onychophagia" class="mw-redirect" title="Onychophagia">Onychophagia</a></li></ul>

<ul><li>other: <a href="Ingrown_nail" title="Ingrown nail">Ingrown nail</a></li>

<li><a href="Anonychia" title="Anonychia">Anonychia</a></li></ul>

<ul><li>ungrouped: <a href="Paronychia" title="Paronychia">Paronychia</a>

<ul><li><a href="Acute_paronychia" class="mw-redirect" title="Acute paronychia">Acute</a></li>

<li><a href="Chronic_paronychia" class="mw-redirect" title="Chronic paronychia">Chronic</a></li></ul></li>

<li><a href="Chevron_nail" title="Chevron nail">Chevron nail</a></li>

<li><a href="Congenital_onychodysplasia_of_the_index_fingers" title="Congenital onychodysplasia of the index fingers">Congenital onychodysplasia of the index fingers</a></li>

<li><a href="Green_nails" class="mw-redirect" title="Green nails">Green nails</a></li>

<li><a href="Half_and_half_nail" title="Half and half nail">Half and half nails</a></li>

<li><a href="Hangnail" title="Hangnail">Hangnail</a></li>

<li><a href="Hapalonychia" title="Hapalonychia">Hapalonychia</a></li>

<li><a href="Ingrown_nail" title="Ingrown nail">Ingrown nail</a></li>

<li><a href="Lichen_planus_of_the_nails" class="mw-redirect" title="Lichen planus of the nails">Lichen planus of the nails</a></li>

<li><a href="Longitudinal_erythronychia" title="Longitudinal erythronychia">Longitudinal erythronychia</a></li>

<li><a href="Malalignment_of_the_nail_plate" title="Malalignment of the nail plate">Malalignment of the nail plate</a></li>

<li><a href="Median_nail_dystrophy" title="Median nail dystrophy">Median nail dystrophy</a></li>

<li><a href="Mees'_lines" title="Mees' lines">Mees' lines</a></li>

<li><a href="Melanonychia" title="Melanonychia">Melanonychia</a></li>

<li><a href="Muehrcke's_lines" class="mw-redirect" title="Muehrcke's lines">Muehrcke's lines</a></li>

<li><a href="Nail%E2%80%93patella_syndrome" title="Nail–patella syndrome">Nail–patella syndrome</a></li>

<li><a href="Onychoatrophy" title="Onychoatrophy">Onychoatrophy</a></li>

<li><a href="Onycholysis" title="Onycholysis">Onycholysis</a></li>

<li><a href="Onychomadesis" title="Onychomadesis">Onychomadesis</a></li>

<li><a href="Onychomatricoma" title="Onychomatricoma">Onychomatricoma</a></li>

<li><a href="Onychomycosis" title="Onychomycosis">Onychomycosis</a></li>

<li><a href="Onychophosis" title="Onychophosis">Onychophosis</a></li>

<li><a href="Onychoptosis_defluvium" class="mw-redirect" title="Onychoptosis defluvium">Onychoptosis defluvium</a></li>

<li><a href="Onychorrhexis" title="Onychorrhexis">Onychorrhexis</a></li>

<li><a href="Onychoschizia" title="Onychoschizia">Onychoschizia</a></li>

<li><a href="Platonychia" title="Platonychia">Platonychia</a></li>

<li><a href="Pincer_nail" title="Pincer nail">Pincer nails</a></li>

<li><a href="Plummer's_nail" class="mw-redirect" title="Plummer's nail">Plummer's nail</a></li>

<li><a href="Psoriatic_nails" class="mw-redirect" title="Psoriatic nails">Psoriatic nails</a></li>

<li><a href="Pterygium_inversum_unguis" title="Pterygium inversum unguis">Pterygium inversum unguis</a></li>

<li><a href="Pterygium_unguis" title="Pterygium unguis">Pterygium unguis</a></li>

<li><a href="Purpura_of_the_nail_bed" class="mw-redirect" title="Purpura of the nail bed">Purpura of the nail bed</a></li>

<li><a href="Racquet_nail" title="Racquet nail">Racquet nail</a></li>

<li><a href="Red_lunulae" title="Red lunulae">Red lunulae</a></li>

<li><a href="Shell_nail_syndrome" title="Shell nail syndrome">Shell nail syndrome</a></li>

<li><a href="Splinter_hemorrhage" title="Splinter hemorrhage">Splinter hemorrhage</a></li>

<li><a href="Spotted_lunulae" title="Spotted lunulae">Spotted lunulae</a></li>

<li><a href="Staining_of_the_nail_plate" title="Staining of the nail plate">Staining of the nail plate</a></li>

<li><a href="Subungual_hematoma" title="Subungual hematoma">Subungual hematoma</a></li>

<li><a href="Terry's_nails" title="Terry's nails">Terry's nails</a></li>

<li><a href="Twenty-nail_dystrophy" class="mw-redirect" title="Twenty-nail dystrophy">Twenty-nail dystrophy</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Hair_disease" title="Hair disease">Hair</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Hair_loss" title="Hair loss">Hair loss</a>/<br><a href="Baldness" class="mw-redirect" title="Baldness">Baldness</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><i><a href="Noncicatricial_alopecia" class="mw-redirect" title="Noncicatricial alopecia">noncicatricial alopecia</a>:</i> <a href="Hair_loss" title="Hair loss">Alopecia</a>

<ul><li><a href="Alopecia_areata" title="Alopecia areata">areata</a></li>

<li><a href="Alopecia_totalis" title="Alopecia totalis">totalis</a></li>

<li><a href="Alopecia_universalis" title="Alopecia universalis">universalis</a></li>

<li><a href="Ophiasis" title="Ophiasis">Ophiasis</a></li></ul></li></ul>

<ul><li><a href="Androgenic_alopecia" class="mw-redirect" title="Androgenic alopecia">Androgenic alopecia</a> (male-pattern baldness)</li>

<li><a href="Hypotrichosis" class="mw-redirect" title="Hypotrichosis">Hypotrichosis</a></li>

<li><a href="Telogen_effluvium" title="Telogen effluvium">Telogen effluvium</a></li>

<li><a href="Traction_alopecia" title="Traction alopecia">Traction alopecia</a></li>

<li><a href="Lichen_planopilaris" class="mw-redirect" title="Lichen planopilaris">Lichen planopilaris</a></li>

<li><a href="Trichorrhexis_nodosa" title="Trichorrhexis nodosa">Trichorrhexis nodosa</a></li>

<li><a href="Alopecia_neoplastica" title="Alopecia neoplastica">Alopecia neoplastica</a></li>

<li><a href="Anagen_effluvium" title="Anagen effluvium">Anagen effluvium</a></li>

<li><a href="Alopecia_mucinosa" title="Alopecia mucinosa">Alopecia mucinosa</a></li></ul>

<ul><li><i><a href="Cicatricial_alopecia" class="mw-redirect" title="Cicatricial alopecia">cicatricial alopecia</a>:</i> <a href="Pseudopelade_of_Brocq" title="Pseudopelade of Brocq">Pseudopelade of Brocq</a></li>

<li><a href="Central_centrifugal_cicatricial_alopecia" title="Central centrifugal cicatricial alopecia">Central centrifugal cicatricial alopecia</a></li>

<li><a href="Pressure_alopecia" title="Pressure alopecia">Pressure alopecia</a></li>

<li><a href="Traumatic_alopecia" title="Traumatic alopecia">Traumatic alopecia</a></li>

<li><a href="Tumor_alopecia" class="mw-redirect" title="Tumor alopecia">Tumor alopecia</a></li>

<li><a href="Hot_comb_alopecia" class="mw-redirect" title="Hot comb alopecia">Hot comb alopecia</a></li>

<li><a href="Dissecting_cellulitis_of_the_scalp" title="Dissecting cellulitis of the scalp">Dissecting cellulitis of the scalp</a></li>

<li><a href="Graham-Little_syndrome" title="Graham-Little syndrome">Graham-Little syndrome</a></li>

<li><a href="Folliculitis_decalvans" title="Folliculitis decalvans">Folliculitis decalvans</a></li></ul>

<ul><li><i>ungrouped:</i> <a href="Triangular_alopecia" title="Triangular alopecia">Triangular alopecia</a></li>

<li><a href="Frontal_fibrosing_alopecia" title="Frontal fibrosing alopecia">Frontal fibrosing alopecia</a></li>

<li><a href="Marie_Unna_hereditary_hypotrichosis" title="Marie Unna hereditary hypotrichosis">Marie Unna hereditary hypotrichosis</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Hypertrichosis" title="Hypertrichosis">Hypertrichosis</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Hirsutism" title="Hirsutism">Hirsutism</a></li>

<li>Acquired

<ul><li><a href="Localized_acquired_hypertrichosis" class="mw-redirect" title="Localized acquired hypertrichosis">localised</a></li>

<li><a href="Acquired_generalized_hypertrichosis" class="mw-redirect" title="Acquired generalized hypertrichosis">generalised</a></li>

<li><a href="Patterned_acquired_hypertrichosis" class="mw-redirect" title="Patterned acquired hypertrichosis">patterned</a></li></ul></li>

<li>Congenital

<ul><li><a href="Generalized_congenital_hypertrichosis" class="mw-redirect" title="Generalized congenital hypertrichosis">generalised</a></li>

<li><a href="Localized_congenital_hypertrichosis" class="mw-redirect" title="Localized congenital hypertrichosis">localised</a></li>

<li><a href="X-linked_hypertrichosis" title="X-linked hypertrichosis">X-linked</a></li></ul></li>

<li><a href="Prepubertal_hypertrichosis" title="Prepubertal hypertrichosis">Prepubertal</a></li>

<li><a href="Nevoid_hypertrichosis" title="Nevoid hypertrichosis">Nevoid hypertrichosis</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Acneiform_eruption" title="Acneiform eruption">Acneiform<br>eruption</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Acneiform_eruption" title="Acneiform eruption">Acne</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Acne_vulgaris" class="mw-redirect" title="Acne vulgaris">Acne vulgaris</a></li>

<li><a href="Acne_conglobata" title="Acne conglobata">Acne conglobata</a></li>

<li><a href="Acne_miliaris_necrotica" title="Acne miliaris necrotica">Acne miliaris necrotica</a></li>

<li><a href="Tropical_acne" title="Tropical acne">Tropical acne</a></li>

<li><a href="Infantile_acne" title="Infantile acne">Infantile acne</a>/<a href="Neonatal_acne" title="Neonatal acne">Neonatal acne</a></li>

<li><a href="Excoriated_acne" title="Excoriated acne">Excoriated acne</a></li>

<li><a href="Acne_fulminans" title="Acne fulminans">Acne fulminans</a></li>

<li><a href="Acne_medicamentosa" title="Acne medicamentosa">Acne medicamentosa</a> (e.g., <a href="Steroid_acne" title="Steroid acne">steroid acne</a>)</li>

<li><a href="Halogen_acne" title="Halogen acne">Halogen acne</a>

<ul><li><a href="Iododerma" title="Iododerma">Iododerma</a></li>

<li><a href="Bromoderma" title="Bromoderma">Bromoderma</a></li>

<li><a href="Chloracne" title="Chloracne">Chloracne</a></li></ul></li>

<li><a href="Acne_cosmetica" title="Acne cosmetica">Acne cosmetica</a></li>

<li><a href="Occupational_acne" title="Occupational acne">Occupational acne</a></li>

<li><a href="Acne_aestivalis" title="Acne aestivalis">Acne aestivalis</a></li>

<li><a href="Acne_keloidalis_nuchae" title="Acne keloidalis nuchae">Acne keloidalis nuchae</a></li>

<li><a href="Acne_mechanica" title="Acne mechanica">Acne mechanica</a></li>

<li><a href="Acne_with_facial_edema" title="Acne with facial edema">Acne with facial edema</a></li>

<li><a href="Pomade_acne" title="Pomade acne">Pomade acne</a></li>

<li><a href="Acne_necrotica" title="Acne necrotica">Acne necrotica</a></li>

<li><a href="Blackhead" class="mw-redirect" title="Blackhead">Blackhead</a></li>

<li><a href="Lupus_miliaris_disseminatus_faciei" title="Lupus miliaris disseminatus faciei">Lupus miliaris disseminatus faciei</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Rosacea" title="Rosacea">Rosacea</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Perioral_dermatitis" title="Perioral dermatitis">Perioral dermatitis</a>

<ul><li><a href="Granulomatous_perioral_dermatitis" class="mw-redirect" title="Granulomatous perioral dermatitis">Granulomatous perioral dermatitis</a></li></ul></li>

<li><a href="Phymatous_rosacea" class="mw-redirect" title="Phymatous rosacea">Phymatous rosacea</a>

<ul><li><a href="Rhinophyma" title="Rhinophyma">Rhinophyma</a></li>

<li><a href="Blepharophyma" title="Blepharophyma">Blepharophyma</a></li>

<li><a href="Gnathophyma" title="Gnathophyma">Gnathophyma</a></li>

<li><a href="Metophyma" title="Metophyma">Metophyma</a></li>

<li><a href="Otophyma" title="Otophyma">Otophyma</a></li></ul></li>

<li><a href="Papulopustular_rosacea" class="mw-redirect" title="Papulopustular rosacea">Papulopustular rosacea</a></li>

<li><a href="Lupoid_rosacea" class="mw-redirect" title="Lupoid rosacea">Lupoid rosacea</a></li>

<li><a href="Erythrotelangiectatic_rosacea" class="mw-redirect" title="Erythrotelangiectatic rosacea">Erythrotelangiectatic rosacea</a></li>

<li><a href="Glandular_rosacea" class="mw-redirect" title="Glandular rosacea">Glandular rosacea</a></li>

<li><a href="Gram-negative_rosacea" title="Gram-negative rosacea">Gram-negative rosacea</a></li>

<li><a href="Steroid_rosacea" title="Steroid rosacea">Steroid rosacea</a></li>

<li><a href="Ocular_rosacea" title="Ocular rosacea">Ocular rosacea</a></li>

<li><a href="Persistent_edema_of_rosacea" title="Persistent edema of rosacea">Persistent edema of rosacea</a></li>

<li><a href="Rosacea_conglobata" class="mw-redirect" title="Rosacea conglobata">Rosacea conglobata</a></li>

<li><i>variants</i>

<ul><li><a href="Periorificial_dermatitis" class="mw-redirect" title="Periorificial dermatitis">Periorificial dermatitis</a></li>

<li><a href="Pyoderma_faciale" class="mw-redirect" title="Pyoderma faciale">Pyoderma faciale</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Ungrouped</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Granulomatous_facial_dermatitis" title="Granulomatous facial dermatitis">Granulomatous facial dermatitis</a></li>

<li><a href="Idiopathic_facial_aseptic_granuloma" title="Idiopathic facial aseptic granuloma">Idiopathic facial aseptic granuloma</a></li>

<li><a href="Periorbital_dermatitis" title="Periorbital dermatitis">Periorbital dermatitis</a></li>

<li><a href="SAPHO_syndrome" title="SAPHO syndrome">SAPHO syndrome</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Follicular <a href="Cyst" title="Cyst">cysts</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li>"<a href="Sebaceous_cyst" title="Sebaceous cyst">Sebaceous cyst</a>"

<ul><li><a href="Epidermoid_cyst" title="Epidermoid cyst">Epidermoid cyst</a></li>

<li><a href="Trichilemmal_cyst" title="Trichilemmal cyst">Trichilemmal cyst</a></li></ul></li>

<li>Steatocystoma

<ul><li><a href="Steatocystoma_simplex" title="Steatocystoma simplex">simplex</a></li>

<li><a href="Steatocystoma_multiplex" title="Steatocystoma multiplex">multiplex</a></li></ul></li>

<li><a href="Milium_(dermatology)" title="Milium (dermatology)">Milia</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Inflammation" title="Inflammation">Inflammation</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Folliculitis" title="Folliculitis">Folliculitis</a>

<ul><li><a href="Folliculitis_nares_perforans" class="mw-redirect" title="Folliculitis nares perforans">Folliculitis nares perforans</a></li>

<li><a href="Tufted_folliculitis" title="Tufted folliculitis">Tufted folliculitis</a></li></ul></li>

<li><a href="Pseudofolliculitis_barbae" title="Pseudofolliculitis barbae">Pseudofolliculitis barbae</a></li></ul>

<ul><li><a href="Hidradenitis" title="Hidradenitis">Hidradenitis</a>

<ul><li><a href="Hidradenitis_suppurativa" title="Hidradenitis suppurativa">Hidradenitis suppurativa</a></li>

<li><a href="Recurrent_palmoplantar_hidradenitis" title="Recurrent palmoplantar hidradenitis">Recurrent palmoplantar hidradenitis</a></li>

<li><a href="Neutrophilic_eccrine_hidradenitis" title="Neutrophilic eccrine hidradenitis">Neutrophilic eccrine hidradenitis</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Ungrouped</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Acrokeratosis_paraneoplastica_of_Bazex" class="mw-redirect" title="Acrokeratosis paraneoplastica of Bazex">Acrokeratosis paraneoplastica of Bazex</a></li>

<li><a href="Acroosteolysis" title="Acroosteolysis">Acroosteolysis</a></li>

<li><a href="Bubble_hair_deformity" title="Bubble hair deformity">Bubble hair deformity</a></li>

<li><a href="Disseminate_and_recurrent_infundibulofolliculitis" title="Disseminate and recurrent infundibulofolliculitis">Disseminate and recurrent infundibulofolliculitis</a></li>

<li><a href="Erosive_pustular_dermatosis_of_the_scalp" title="Erosive pustular dermatosis of the scalp">Erosive pustular dermatosis of the scalp</a></li>

<li><a href="Erythromelanosis_follicularis_faciei_et_colli" title="Erythromelanosis follicularis faciei et colli">Erythromelanosis follicularis faciei et colli</a></li>

<li><a href="Hair_casts" title="Hair casts">Hair casts</a></li>

<li><a href="Hair_follicle_nevus" title="Hair follicle nevus">Hair follicle nevus</a></li>

<li>Intermittent hair–follicle dystrophy</li>

<li><a href="Keratosis_pilaris_atropicans" class="mw-redirect" title="Keratosis pilaris atropicans">Keratosis pilaris atropicans</a></li>

<li><a href="Kinking_hair" title="Kinking hair">Kinking hair</a></li>

<li><a href="Koenen's_tumor" title="Koenen's tumor">Koenen's tumor</a></li>

<li><a href="Lichen_planopilaris" class="mw-redirect" title="Lichen planopilaris">Lichen planopilaris</a></li>

<li><a href="Lichen_spinulosus" title="Lichen spinulosus">Lichen spinulosus</a></li>

<li><a href="Loose_anagen_syndrome" title="Loose anagen syndrome">Loose anagen syndrome</a></li>

<li><a href="Menkes_kinky_hair_syndrome" class="mw-redirect" title="Menkes kinky hair syndrome">Menkes kinky hair syndrome</a></li>

<li><a href="Monilethrix" title="Monilethrix">Monilethrix</a></li>

<li><a href="Parakeratosis_pustulosa" title="Parakeratosis pustulosa">Parakeratosis pustulosa</a></li>

<li>Pili (<a href="Pili_annulati" title="Pili annulati">Pili annulati</a></li>

<li><a href="Pili_bifurcati" title="Pili bifurcati">Pili bifurcati</a></li>

<li><a href="Pili_multigemini" title="Pili multigemini">Pili multigemini</a></li>

<li><a href="Pili_pseudoannulati" class="mw-redirect" title="Pili pseudoannulati">Pili pseudoannulati</a></li>

<li><a href="Pili_torti" title="Pili torti">Pili torti</a>)</li>

<li><a href="Pityriasis_amiantacea" title="Pityriasis amiantacea">Pityriasis amiantacea</a></li>

<li><a href="Plica_neuropathica" title="Plica neuropathica">Plica neuropathica</a></li>

<li><a href="Poliosis" title="Poliosis">Poliosis</a></li>

<li><a href="Rubinstein%E2%80%93Taybi_syndrome" title="Rubinstein–Taybi syndrome">Rubinstein–Taybi syndrome</a></li>

<li><a href="Setleis_syndrome" title="Setleis syndrome">Setleis syndrome</a></li>

<li><a href="Traumatic_anserine_folliculosis" title="Traumatic anserine folliculosis">Traumatic anserine folliculosis</a></li>

<li><a href="Trichomegaly" title="Trichomegaly">Trichomegaly</a></li>

<li><a href="Trichomycosis_axillaris" title="Trichomycosis axillaris">Trichomycosis axillaris</a></li>

<li>Trichorrhexis (<a href="Trichorrhexis_invaginata" title="Trichorrhexis invaginata">Trichorrhexis invaginata</a></li>

<li><a href="Trichorrhexis_nodosa" title="Trichorrhexis nodosa">Trichorrhexis nodosa</a>)</li>

<li><a href="Trichostasis_spinulosa" title="Trichostasis spinulosa">Trichostasis spinulosa</a></li>

<li><a href="Uncombable_hair_syndrome" title="Uncombable hair syndrome">Uncombable hair syndrome</a></li>

<li><a href="Woolly_hair_nevus" title="Woolly hair nevus">Woolly hair nevus</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Sweat_gland_disease" class="mw-redirect" title="Sweat gland disease">Sweat<br>glands</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Eccrine_sweat_gland" title="Eccrine sweat gland">Eccrine</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Miliaria" title="Miliaria">Miliaria</a>

<ul><li><a href="Colloid_milium" class="mw-redirect" title="Colloid milium">Colloid milium</a></li>

<li><a href="Miliaria_crystalline" class="mw-redirect" title="Miliaria crystalline">Miliaria crystalline</a></li>

<li><a href="Miliaria_profunda" class="mw-redirect" title="Miliaria profunda">Miliaria profunda</a></li>

<li><a href="Miliaria_pustulosa" class="mw-redirect" title="Miliaria pustulosa">Miliaria pustulosa</a></li>

<li><a href="Miliaria_rubra" class="mw-redirect" title="Miliaria rubra">Miliaria rubra</a></li>

<li><a href="Occlusion_miliaria" class="mw-redirect" title="Occlusion miliaria">Occlusion miliaria</a></li>

<li><a href="Postmiliarial_hypohidrosis" class="mw-redirect" title="Postmiliarial hypohidrosis">Postmiliarial hypohidrosis</a></li></ul></li>

<li><a href="Granulosis_rubra_nasi" title="Granulosis rubra nasi">Granulosis rubra nasi</a></li>

<li><a href="Ross'_syndrome" title="Ross' syndrome">Ross' syndrome</a></li>

<li><a href="Hyperhidrosis" title="Hyperhidrosis">Hyperhidrosis</a>

<ul><li><a href="Generalized_hyperhidrosis" class="mw-redirect" title="Generalized hyperhidrosis">Generalized</a></li>

<li><a href="Gustatory_hyperhidrosis" class="mw-redirect" title="Gustatory hyperhidrosis">Gustatory</a></li>

<li><a href="Palmoplantar_hyperhidrosis" title="Palmoplantar hyperhidrosis">Palmoplantar</a></li></ul></li>

<li><a href="Hypohidrosis" title="Hypohidrosis">Hypohidrosis</a>

<ul><li><a href="Anhidrosis" class="mw-redirect" title="Anhidrosis">Anhidrosis</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Apocrine" title="Apocrine">Apocrine</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Chromhidrosis" title="Chromhidrosis">Chromhidrosis</a></li>

<li><a href="Fox%E2%80%93Fordyce_disease" title="Fox–Fordyce disease">Fox–Fordyce disease</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Sebaceous_gland" title="Sebaceous gland">Sebaceous</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

</div></td></tr></tbody></table><div></div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-06-09" href="https://en.wikipedia.org/wiki/?title=Sebaceous_hyperplasia&oldid=1294743099">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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