Laparoscopic resection for malignant lymphoma of the ileum causing ileocecal intussusception.

A 22-year-old man was admitted with right lower abdominal pain. Colonoscopy revealed a ball-like tumor at the ileum. Abdominal sonography and computed tomography showed ileocecal intussusception. Microscopic examination of the biopsy specimen showed malignant lymphoma. Laparoscopic ileocecal resection was performed. Histologic diagnosis of the resected tumor was diffuse large B cell-type malignant lymphoma. Intussusception due to malignant lymphoma is relatively rare in adults. If contraindications of laparoscopy are not present, laparoscopic resection can be performed safely and should be considered for diagnosis and treatment for intussusception in ileocecal lesions in adults.