Idiopathic dilatation of the superior vena cava (superior vena cava dilatation).
D000783:Aneurysm / Q000000981:diagnostic imaging*; D002648:Child; D003937:Diagnosis, Differential; D004106:Dilatation; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging; D010690:Phlebography; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging*