1) Vascular disease 
Pylephlebitis (also called infective suppurative thrombosis of the portal vein) is an uncommon thrombophlebitis of the portal vein or any of its branches. It is usually a complication of intraabdominal sepsis, most often following diverticulitis, perforated appendicitis, or peritonitis. Considered uniformly lethal in the pre-antibiotic era, it sti...
Inflammation of the portal vein or any of its branches. ... Origin: G. Pyle, a gate, + phleps, vein, + -itis, inflammation ... (05 Mar 2000) ... 
(pi″le-flә-bi´tis) inflammation of the portal vein.
Type: Term Pronunciation: pī′lē-fle-bī′tis Definitions: 1. Inflammation of the portal vein or any of its branches.