Imaging of Congenital Portosystemic Shunts
نویسنده
چکیده
T he normal portal vascular system transports venous blood from the stomach, intestines, spleen, and pancreas to the hepatic sinusoids and ultimately the hepatic veins and caudal vena cava. Portosystemic shunting (PSS) occurs when abnormal vascular connections occur between the portal and systemic venous systems, bypassing the liver. This can be acquired secondary to portal hypertension arising from chronic hepatopathy (such as cirrhosis) or congenitally due to persistence of fetal shunting vessels. Imaging diagnosis of congenital shunts is important, since surgical attenuation is the treatment of choice in clinically affected patients.
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