A case of chemotherapy by the transarterial catheter with reservoir against malignant lymphoma of the colon

: We had a case of malignant lymphoma of the colon with two lesions, one in the transverse colon and the other in the ascending colon. The tumor of the transverse colon was resected, but that of the ascending colon was unresectable. Chemotherapy was performed through the catheter with reservoir via the iliac artery into the right colic artery. Three months later, the tumor disappeared completely, and the ascending colon was resected. On histopathological examination, there was no lymphoma cell in the ascending colon. Chemotherapy by a transarterial catheter with reservoir is a new method of treatment against malignant lymphoma.