Skin - Nonmelanocytic tumors
Vascular tumors
Reactive angioendotheliomatosis

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

Revised: 7 October 2016, last major update August 2012

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PubMed search: reactive angioendotheliomatosis

Cite this page: Reactive angioendotheliomatosis. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skintumornonmelanocyticreactiveangioendotheliomatosis.html. Accessed December 10th, 2016.
Definition / General
  • Usually occurs in skin; associated with systemic disease
Micro 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