Evaluation of superior vena cava obstruction.
D003251:Constriction, Pathologic; D006801:Humans; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D013899:Thoracic Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014683:Vena Cava, Superior