Anomalous inferior vena cava with azygous drainage: so-called absence of the inferior vena cava.
D018376:Cardiovascular Abnormalities; D002319:Cardiovascular System; D004322:Drainage; D006801:Humans; D014682:Vena Cava, Inferior; D014684:Venae Cavae / Q000002:abnormalities*
CARDIOVASCULAR DEFECTS, CONGENITAL; VENAE CAVAE/abnormalities