Home   Chapter Home   Jobs   Conferences   Fellowships   Books


Skin - Nonmelanocytic tumors

Vascular tumors

Reactive angioendotheliomatosis

Reviewer: Christopher Hale, M.D. (see Reviewers page)
Revised: 19 August 2012, last major update August 2012
Copyright: (c) 2001-2012, PathologyOutlines.com, Inc.


● 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

Positive stains

● CD31, CD34, factor VIII related antigen

End of Skin - Nonmelanocytic tumors > Vascular tumors > Reactive angioendotheliomatosis

This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.

All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at [email protected] with any questions (click here for other contact information).