title: Case report: diagnosis of cavo-portal shunt in inferior vena cava obstruction: comparison between venography and dynamic scintigraphy.
abstract: A cavo-portal shunt is a rare complication of inferior vena cava obstruction. A patient is described who had complete obstruction of the inferior vena cava (IVC) due to extension of tumour thrombus from a left renal cell carcinoma. Venocavography clearly showed many collateral veins but not a cavo-portal shunt. Dynamic scintigraphy, however, distinctively showed a draining vein and subsequent homogeneous radionuclide uptake of the liver, which indicates a cavo-portal shunt.
authors.affiliation: Department of Cardiovascular Surgery, Kinan General Hospital, Wakayama, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Nishida
authors.forename: A
authors.initials: A
authors.lastname: Okuda
mesh_terms: D002292:Carcinoma, Renal Cell / Q000473:pathology*; D003097:Collateral Circulation; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008099:Liver / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011859:Radiography; D011877:Radionuclide Imaging; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging* / Q000473:pathology