agenesis of the superior vena cava
Agenesis of the superior vena cava (SVC) is a rare congenital anomaly of the great veins characterized by unilateral or bilateral complete absence of the SVC. Unilateral agenesis is mainly asymptomatic (most of the time diagnosed incidentally) and patients usually have otherwise normal heart structure. Bilateral agenesis, however, is frequently associated with other congenital cardiac anomalies and/or conduction abnormalities (such as tetralogy of Fallot, atrial septal defect) and typically present symptoms of SVC syndrome.
MONDO:0019829
congenital anomaly of superior vena cava
is_a
absence of the SVC
exact
absence of the superior caval vein
exact
absence of the superior vena cava
exact
agenesis of the SVC
exact
agenesis of the superior caval vein
exact