benign blood vessel neoplasm angiomatosis MEDGEN:1931 diffuse angiomatosis multiple hemangiomas diffuse hemangioma MESH:D000798 angiomatosis MONDO:0024461 SCTID:205562004 Editor note: check this NCIT:C27503 A benign diffuse vascular proliferation usually occurring in young adults. It is characterized by the formation of capillary-sized and cavernous vascular spaces. Patients present with diffuse persistent swelling. angiomatoses UMLS:C0002992