Persistent left superior vena cava.
D000368:Aged; D018376:Cardiovascular Abnormalities; D002319:Cardiovascular System; D006331:Heart Diseases; D006801:Humans; D014683:Vena Cava, Superior; D014684:Venae Cavae / Q000002:abnormalities*
CARDIOVASCULAR DEFECTS, CONGENITAL; VENAE CAVAE/abnormalities