Benign tumors
Hidradenoma papilliferum

Author: Nat Pernick, M.D. (see Authors page)

Revised: 5 October 2017, last major update March 2003

Copyright: (c) 2002-2017,, Inc.

PubMed Search: Hidradenoma papilliferum vulva

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Cite this page: Pernick, N. Hidradenoma papilliferum. website. Accessed January 21st, 2019.
Definition / general
  • Also known as papillary hidradenoma
  • Benign, small, sharply circumscribed nodule covered by normal skin, often on labia majora or interlabial folds
  • May ulcerate through skin and simulate carcinoma
  • May derive from ectopic mammary tissue (resembles intraductal papilloma)
Case reports
Microscopic (histologic) description
  • Well differentiated, complex papillary glandular pattern with some stratification and pleomorphism
  • Myoepithelial layer usually present
Microscopic (histologic) images

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Case of the Week #343:

H&E images