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proliferating systematized angioendotheliomatosis

n.
  1. A rare generalized cutaneous and visceral intracapillary proliferation of endothelial cells, accompanied by vascular thrombosis and obstruction.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.