Primary lymphoma of the rectum.

Primary lymphoma of the rectum is rare. Its usual grouping with primary lymphoma of the gastrointestinal tract leaves little in the literature that deals specifically with a primary rectal lymphoma. Various treatments have been reported ranging from abdominoperineal resection with adjuvant chemotherapy and radiation therapy to chemotherapy or radiation therapy alone. A case of primary rectal lymphoma is presented and the literature is reviewed. In the few cases reported in the literature, patients treated surgically had a better prognosis than those treated nonsurgically with an overall 5-year survival of 50 per cent. Recommended treatment includes varying forms of surgical therapy ranging from local resection to abdominoperineal resection. Adjuvant chemotherapy, radiation therapy, or both should be considered.