Leiomyosarcoma of the rectum: report of three cases.

Leiomyosarcoma is a malignant tumor which rarely occurs in the rectum. Three patients with leiomyosarcoma of the rectum are presented. Treatment should include wide surgical excision followed by adjuvant chemotherapy. Emphasis is placed upon computerized tomography as the method of choice for the diagnosis of recurrent disease. Recurrent tumor should be resected whenever possible.