Report of a rare case of an 83-year-old patient with lymphoma of the terminal ileum causing obstructive/perforated acute abdomen synchronous with sigmoid colon adenocarcinoma and review of literature data about small bowel malignancies, particularly lymphomas. It seems to correspond to a rare disease (2% of all bowel cancers), more prevalent in elderly and immunocompromised patients, whose symptoms are vague and early diagnosis is difficult, often making it impossible to establish the correct therapy.
gastrointestinal neoplasm; lymphoma; adenocarcinoma; intestinal obstruction; intestinal perforation