title: Hemangioma of the rectum: CT appearance.
abstract: An 18-year-old man who had severe recurrent rectal bleeding and hematuria was found to have a diffuse cavernous hemangioma of the rectosigmoid. A computed tomographic (CT) study was indicated to evaluate tumor extension and therapeutic possibilities. CT scanning revealed a large mass with phleboliths throughout the true pelvis and nodular indentations in the rectosigmoid wall involving the dome and posterior wall of the bladder. A nonhomogeneous and subtle enhancement of the lesion was noticed after injection of contrast medium.
mesh_terms: D000293:Adolescent; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging