Tetralogy of Fallot is a congenital cardiac abnormality that disrupts normal blood flow. The cause is unknown. It is estimated to affect 1 in every 3,000 live births. Tetralogy of Fallot and other congenital cardiac illnesses are common in children with chromosomal abnormalities like Down syndrome and DiGeorge syndrome. Figure 1. The classic form of Tetralogy of Fallot has four heart and major blood vessel defects. Question: Can you identify the missing defect from Figure 1?
A. Ventricular hypertrophy B. Atrioventricular septal defect C. Mitral valve stenosis D. Cor triloculare biatriatum This question is exclusively from the Editorial team of Docplexus and is meant for educational purposes only. Source: CDC
