title: Diagnosis of extrahepatic portal vein obstruction.
mesh_terms: D006801:Humans; D008099:Liver / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D010690:Phlebography; D011169:Portal Vein; D011172:Portography; D012039:Regional Blood Flow; D013924:Thrombophlebitis / Q000175:diagnosis*; D014471:Umbilical Veins / Q000000981:diagnostic imaging