<prompt> Hemangioma of the rectuma Common tumourb Fatal haemorrhage seenc Ulcerative colitis like symptoms seend Acute anal fissurebccacad  <response>: Hemangioma of the rectum is an uncommon cause of serious hemorrhage.When localized in the lower part of the rectum or anal canal, a hemangioma can be excised.When the lesion is diffuse, or lying in the upper part of the rectum, the symptoms simulate ulcerative colitis.Diagnosis is often missed for a long period, or it is mistakenly thought to be a carcinoma.Selective angiography and embolization may be helpful, but excision of the rectum is sometimes required. 