A congenital heart anomality which is comprised of a series of four symptoms such as pulmonary stenosis, ventricular septal defect, dextroposition of the aorta, and hypertrophy of right ventricle.
This condition is commonly observed in a blue baby at birth because of lack of sufficient oxygenation. This is treated by surgical means.
Variant: Fallot's tetrad
Also called: tetralogy of Fallot