Colon nontumor
Nonneoplastic, non-congenital lesions
Reactive angioendotheliomatosis



Topic Completed: 1 October 2013

Revised: 9 January 2019, last major update October 2013

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PubMed search: reactive angioendotheliomatosis


Raul S. Gonzalez, M.D.
Page views in 2018: 258
Page views in 2019 to date: 337
Cite this page: Gonzalez R. Reactive angioendotheliomatosis. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colonreactiveangio.html. Accessed October 22nd, 2019.
Definition / general
  • Intravascular proliferation of endothelial cells
Epidemiology
  • Typically seen in skin; extremely rare in colon, with only one case reported
Clinical features
  • Only reported patient experienced massive gastrointestinal bleeding
Case reports
Gross description
  • Numerous shallow colonic ulcers
Microscopic (histologic) description
  • Intravascular proliferation of endothelial cells resembling glomeruloid hemangioma
Positive stains
Differential diagnosis
Additional references
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