Fig. 2From: One visceral artery may be enough; successful pancreatectomy in a patient with total occlusion of the celiac and superior mesenteric arteriesSagittal reconstruction of a computed tomography scan (a) demonstrates proximal occlusion of celiac trunk (CT) and SMA with poststenotic dilatation of the SMA. Note the hypertrophic IM. Volume rendering (b) shows collateral arteries from IMA to SMA (hypertrophic anastomosis of Riolan)Back to article page