abnormal vein morphology abnormal hepatic portal vein morphology 2010-10-20T09:31:49Z MP:0010668 csmith abnormal PV any structural anomaly of the wide short vein formed from the confluence of the superior mesenteric, inferior mesenteric and splenic veins, and then divides into the right and left branches which ramify with the liver; the hepatic portal vein carries venous blood from the GI tract, spleen and pancreas to the liver abnormal portal vein morphology abnormal HPV MPheno.ontology