title: Unusual portosystemic collateral penetrating the liver parenchyma.
abstract: We present a case of an extremely rare portosystemic collateral pathway which arose from the right intrahepatic portal vein, passed through the liver parenchyma, and terminated into the inferior vena cava. We demonstrate the findings of diagnostic imaging and discuss the etiology of the collateral circulation in this unusual case.
mesh_terms: D000368:Aged; D000792:Angiography; D003097:Collateral Circulation; D006801:Humans; D008099:Liver / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D008102:Liver Circulation; D008297:Male; D011169:Portal Vein; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014682:Vena Cava, Inferior