Radiologic investigation of the portal venous system.
D004932:Esophageal and Gastric Varices / Q000000981:diagnostic imaging; D006801:Humans; D006975:Hypertension, Portal / Q000000981:diagnostic imaging*; D008642:Mesenteric Veins; D010690:Phlebography; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011172:Portography