Skin - Nonmelanocytic tumors
Vascular tumors
Reactive angioendotheliomatosis

Author: Christopher Hale, M.D. (see Authors page)

Revised: 7 October 2016, last major update August 2012

Copyright: (c) 2003-2016,, Inc.

PubMed search: reactive angioendotheliomatosis

Cite this page: Reactive angioendotheliomatosis. website. Accessed December 12th, 2018.
Definition / general
  • Usually occurs in skin; associated with systemic disease
Microscopic (histologic) description
  • Multiple clusters of closely packed capillaries lined by endothelial cells without atypia
  • Also striking proliferation of endothelial cells forming capillaries within preexisting dilated blood vessels
  • May have fibrin microthrombi, epithelioid endothelium