Skin nonmelanocytic tumor
Adnexal tumors
Sebaceous glands
Sebaceous adenoma
Author: Christopher S. Hale, M.D.
Topic Completed: 1 June 2012
Minor changes: 4 April 2019
Copyright: 2003-2015, PathologyOutlines.com, Inc.
PubMed Search: Sebaceous adenoma [title] skin
Table of Contents
Definition / general | Clinical images | Gross description | Microscopic (histologic) description | Microscopic (histologic) images | Differential diagnosisCite this page: Hale C. Sebaceous adenoma. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/skintumornonmelanocyticsebaceousadenoma.html. Accessed August 3rd, 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
Images hosted on PathOut server:
c/o Dr. Michael Inskip
C/o Dr. Mark R. Wick
Images hosted on Other servers:
Muir-Torre syndrome
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
Images hosted on PathOut server:
c/o Joel Pinczewski, MD PhD,
Australia
Courtesy of Dr. Mark R. Wick
Muir-Torre type, c/o Dr. Mark R. Wick
Images hosted on Other servers:
Cystic features
Multilobular architecture
Differential diagnosis
- Sebaceous carcinoma
- Sebaceous hyperplasia
- Other lesions with sebaceous differentiation
