Abstract
Rectal lymphoma is a rare condition, presenting in less than 0.5% of all primary rectal neoplasms. Due to the disease's primary non-specific symptoms, its diagnosis is usually made at advanced stages. Clinically, it is indistinguishable from rectal carcinoma. The optimal approach for managing rectal lymphoma has still not been determined. We report a case of primary rectal diffuse large B-cell lymphoma (stage IV) in a 71-year-old Omani woman.