Abstract
Among primary malignant lymphomas of the intestine, those arising in the large intestine are relatively rare. Here a giant malignant lymphoma of the ascending colon, of which resected tumor weighed 1.5 kg is described.
A 57-year-old man was admitted to the hospital because of massive melena. Barium enema, ultrasonography, computed tomography and angiography, revealed a tumor of ileocecal region. On laparotomy, a giant tumor in the ascending colon and swelling of regional lymph nodes were seen, and right hemicolectomy with dissection of regional lymph nodes was carried out on suspicion of malignant tumor. Pathologically, it was non-Hodgkin's lymphoma, diffuse large cell type according to lymphoma study group classification and was positive for cell surface markers anti B-cell antigen. Four courses of CHOP chemotherapy were performed, and the patient is followed on an ambulant basis. There has been no recurrence, for 10 months after the operation.
