title: Diffuse hemangiomatosis of the colon.
abstract: We report extensive colonic hemangiomatosis in two young adults. In the first, the hemangioma contiguously involved the entire colon. In the second, a large venous angioma affected the bladder, rectosigmoid, and descending colon. Venous angioma, a variant of hemangioma, is frequently confused with cavernous hemangioma because of their similar histologic appearance. The angiographic features, however, may enable a more accurate preoperative diagnosis and prevent unwarranted biopsy. We review and put into perspective pertinent previous reports of cavernous and venous angioma.
mesh_terms: D000328:Adult; D000792:Angiography; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D006391:Hemangioma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D012811:Sigmoid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology