Skin nonmelanocytic tumor

Other tumors of skin

Borst-Jadassohn phenomenon

Topic Completed: 29 March 2019

Minor changes: 9 November 2020

Copyright: 2019-2021,, Inc.

PubMed Search: Borst-Jadassohn phenomenon

Hillary Rose Elwood, M.D.
Christopher S. Hale, M.D.
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Table of Contents
Definition / general
Cite this page: Elwood HR, Hale CS. Borst-Jadassohn phenomenon. website. Accessed November 27th, 2021.
Definition / general
  • Previously called intraepidermal epithelioma
  • Not clearly defined
  • Likely heterogeneous group of disorders (Am J Dermatopathol 2011;33:492) including irritated seborrheic keratosis, eccrine poroma and other intraepidermal sweat gland tumors
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