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  • Title: Tc-99m RBC blood-pool imaging demonstrates umbilical vein in portosystemic shunt.
    Author: Crucitti TW, Shapiro HR, Spencer RP.
    Journal: J Nucl Med; 1984 Dec; 25(12):1317-9. PubMed ID: 6502254.
    Abstract:
    Dynamic hepatic scintigraphy in a patient with longstanding ethanolism revealed hepatofugal drainage of the liver area. That this pathway represented the umbilical vein was shown by subsequent blood-pool images. The umbilical vein drained the left portal vein into venous channels in or near the anterior abdominal wall. These channels proceeded through epigastric vessels into the right femoral/iliac venous system. The umbilical vein may serve as a shunt from the portal system to the systemic circulation in cases of portal hypertension. Blood-pool imaging has a potential role in clarifying possible venous channels identified by hepatic scintiangiography, and can suggest the presence of portal hypertension when these vessels are visualized.
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