title: Inferior vena caval occlusion.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D011024:Pneumonia, Viral / Q000150:complications; D011655:Pulmonary Embolism / Q000150:complications; D011859:Radiography; D012907:Smoking; D013923:Thromboembolism / Q000150:complications; D013924:Thrombophlebitis; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging