title: Rare collateral pathway in superior vena cava obstruction. The development of the venous shunts between systemic veins and the left heart.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003097:Collateral Circulation; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011877:Radionuclide Imaging; D013479:Superior Vena Cava Syndrome / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014680:Veins / Q000000981:diagnostic imaging