PMC5809575_01
PMC5809575_02
Computed tomography angiography shows that the vertical vein from pulmonary venous confluence goes through the diaphragm and drains into the portal vein, winding its way like a spiral. LSVC left superior vena cava, RSVC right superior vena cava, LPV left pulmonary vein, RPV right pulmonary vein, HV hepatic vein, AV azygous vein, VV vertical vein
40981_2018_154_Fig1_HTML.jpg
PMC5809575_02_40981_2018_154_Fig1_HTML.jpg
Fig1
Computed tomography prior to cardiac surgery indicated that the vertical vein drained into the portal vein (Fig. 1).