Hypernephromas with Parasitic Blood Supply Derived from the Superior and Inferior Mesenteric Arteries

Three cases of hypernephroma in which the tumor blood supply was obtained from the inferior or superior mesenteric artery are presented. In each case, the origin of the blood supply was demonstrated by selective arteriography. Correlation of arteriographic and surgical findings indicates that the demonstration of parasitic blood supply from the mesenteric arteries is a reliable sign that the hypernephroma has extended beyond the renal capsules and has invaded the mesentery of the colon.