Congenital aneurysm of the superior vena cava.
D000293:Adolescent; D000783:Aneurysm / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008477:Mediastinal Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D010690:Phlebography; D014683:Vena Cava, Superior