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Colo-anal anastomosis with colonic reservoir for cavernous hemangioma of the rectum.

The authors report on the clinical history of, and the therapeutic choices for, cavernous hemangioma of the rectum diagnosed in a 27-year-old male admitted for repeated episodes of rectal bleeding. The hemangioma extended to the dentate line and consequently the surgical challenge was to carry out a sphincter-saving procedure. The low resting pressure of the sphincter did not rule out the use of the colo-anal anastomosis procedure, but did require the construction of a pre-anastomotic colonic reservoir. The diagnostic problems and the therapeutic choices related to the salvaging of the sphincter are discussed.