title: Radionuclide venographic demonstration of portal and systemic collaterals in a case of complete IVC obstruction.
abstract: Radionuclide venography can be used to assess deep venous thrombosis and IVC obstruction. We present a case which, to our knowledge, has not been previously described, in which the entire liver and lungs are simultaneously visualized secondary to portal-caval and caval-systemic collaterals, respectively.
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D003097:Collateral Circulation; D005268:Femoral Vein; D006801:Humans; D007084:Iliac Vein; D008099:Liver / Q000000981:diagnostic imaging; D008168:Lung / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011168:Portal System / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D012187:Retroperitoneal Space; D012709:Serum Albumin; D013667:Technetium; D013668:Technetium Tc 99m Aggregated Albumin; D013924:Thrombophlebitis / Q000000981:diagnostic imaging*; D014682:Vena Cava, Inferior / Q000473:pathology*
chemical_list: D012709:Serum Albumin; D013668:Technetium Tc 99m Aggregated Albumin; D013667:Technetium