Pseudo-obstruction of inferior vena cava from Valsalva's maneuver.
D000230:Adenocarcinoma; D006801:Humans; D007680:Kidney Neoplasms; D008175:Lung Neoplasms / Q000556:secondary; D008297:Male; D008875:Middle Aged; D014636:Valsalva Maneuver; D014652:Vascular Diseases / Q000209:etiology; D014682:Vena Cava, Inferior