ILEOCOLIC INTUSSUSCEPTION IN ADULT DUE TO MALIGNANT-LYMPHOMA IN THE CECUM WITH INTRAMURAL METASTASIS

A rare adult case of intussusception caused by malignant lymphoma of t he cecum with intramural metastasis is reported. The patient was a 24- year-old man. Ileocolic intussusception was diagnosed by characteristi c findings on abdominal computed tomography. Endoscopic examination re vealed a massive protuberant tumor, 3 cm in diameter, and a semipedunc ulated polyp, 1 cm in diameter, in the cecum, which had caused the ile ocolic intussusception. Endoscopic biopsy specimens failed to yield a definitive diagnosis histologically, but right hemicolectomy with lymp h node dissection was performed. On histologic examination of the surg ical specimens, both the tumor and the polyp were diagnosed as diffuse lymphoma of medium-sized eel type, and no lymph node involvement was found. The patient responded well to surgical and chemotherapeutic tre atment, and has had no recurrence of malignant lymphoma in the 2 years since the surgical treatment. This was a very rare case of an intussu sception in an adult patient due to malignant lymphoma in the cecum wi th intramural metastasis and without lymph node involvement.