For many years there has been sparse and confusing information available on HMVD/PHPV. Well, I find it confusing anyway! For starters, although the term PHPV has been chosen by the liver standardisation group of the WSAVA as its preferred terminology, the vast majority of dogs with PHPV don’t have a hypoplastic (main) portal vein: rather … Continue reading
Recently I’ve seen two three-month-old dogs with multiple (numerous) small portosystemic shunts in the absence of inflammatory liver disease. The patient whose images are presented below was examined on account of acute encephalopathy with bile acids >130 umol/l and ALT > 600 (ref <100). The same in video: This flow courses via colic veins to enter … Continue reading
In the vast majority of congenital extrahepatic shunts, the portal vein (PV) exists in normal relation to its tributaries and branches but is hypoplastic due to diversion of flow. Just occasionally, one comes across a shunt with complete absence or interruption of the PV. Vet Surg. 1998 May-Jun;27(3):203-15. Congenital interruption of the portal vein and … Continue reading
