Leiomyosarcoma of the anus treated with sphincter-preserving surgery and radiation therapy

The sixth published case of a leiomyosarcoma of the anus is reported and the previous literature reviewed. Treatment with successful preservation of anal sphincter function is described. Local excision of the tumor was followed by external beam radiation therapy and an Iridium-192 implant. The details and rationale for this mode of therapy for resectable anal tumors are discussed.