Sebaceous adenoma

Skin nonmelanocytic tumor

Adnexal tumors

Sebaceous glands

Sebaceous adenoma

Author: Christopher S. Hale, M.D.

Topic Completed: 1 June 2012

Minor changes: 16 October 2020

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

PubMed Search: Sebaceous adenoma [title] skin

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Table of Contents

Cite this page: Hale C. Sebaceous adenoma. PathologyOutlines.com website. https://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.

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.