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  • Title: Collateral pathways in portal hypertension.
    Author: Sharma M, Rameshbabu CS.
    Journal: J Clin Exp Hepatol; 2012 Dec; 2(4):338-52. PubMed ID: 25755456.
    Abstract:
    Presence of portosystemic collateral veins (PSCV) is common in portal hypertension due to cirrhosis. Physiologically, normal portosystemic anastomoses exist which exhibit hepatofugal flow. With the development of portal hypertension, transmission of backpressure leads to increased flow in these patent normal portosystemic anastomoses. In extrahepatic portal vein obstruction collateral circulation develops in a hepatopetal direction and portoportal pathways are frequently found. The objective of this review is to illustrate the various PSCV and portoportal collateral vein pathways pertinent to portal hypertension in liver cirrhosis and EHPVO.
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