Skin nonmelanocytic tumor
Adnexal tumors
Sebaceous glands
Sebaceous adenoma


Topic Completed: 1 June 2012

Minor changes: 16 October 2020

Copyright: 2003-2020, PathologyOutlines.com, Inc.

PubMed Search: Sebaceous adenoma [title] skin

Christopher S. Hale, M.D.
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Cite this page: Hale C. Sebaceous adenoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skintumornonmelanocyticsebaceousadenoma.html. Accessed October 26th, 2020.
Definition / general
  • Hyperplasia of sebaceous lobules with expasion of germinative basaloid cell layers at periphery
  • Unrelated to adenoma sebaceum (facial angiofibromas of tuberous sclerosis)
  • Associated with Muir-TorrÈ Syndrome (Histopathology 2010;56:133)
Clinical images

Contributed by Michael Inskip, M.B.Ch.B. and Mark R. Wick, M.D.
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Various images

Gross description
  • Papule / nodule on face / scalp
Microscopic (histologic) description
  • Nodular lobulated growth with dark and light areas corresponding to generative cells (dark) and sebaceous cells (light) with cytoplasmic lipid vacuoles
  • Not as organoid as sebaceous hyperplasia
Microscopic (histologic) images

Contributed by Joel Pinczewski, M.D., Ph.D. and Mark R. Wick, M.D.
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Sebaceous adenoma

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Various images

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Muir-Torre type



Images hosted on other servers:
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Cystic features

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Multilobular architecture

Differential diagnosis
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