[Rectal lymphoma: report of a case and considerations on its etiology, diagnosis, and therapy]. / Linfoma retal: apresentação de um caso e considerações sobre sua etiologia, diagnóstico e tratamento.

Primary rectal lymphomas are rare tumors representing less than 2% of the neoplasms of the colon. Common symptoms are the same that occur in carcinoma of the rectum. Patients treated surgically have a better prognosis. Chemotherapy and radiation therapy should be considered in some cases. A case of primary rectal lymphoma is presented and the literature reviewed.