Fig. 3From: Cadaveric and CT angiography study of vessels around the transverse colon mesenteryThe drainage site of the inferior mesenteric vein (IMV). a The IMV flows into the splenic vein and forms the portal vein. b The IMV flows into the superior mesenteric vein and forms the portal vein. c The IMV, SMV and splenic vein merge simultaneously to form the portal vein. IMV, inferior mesenteric vein; SMV, superior mesenteric veinBack to article page