tetralogy of Fallot
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tetralogy of Fal·lot(fă-lō′)
A congenital malformation of the heart characterized by a defect in the ventricular septum, misplacement of the origin of the aorta, narrowing of the pulmonary artery, and enlargement of the right ventricle.
[After Étienne Fallot (1850-1911), French physician.]
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|Noun||1.||tetralogy of Fallot - a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle|
pulmonary stenosis - abnormal narrowing of the opening into the pulmonary artery from the right ventricle
syndrome - a pattern of symptoms indicative of some disease
congenital heart defect - a birth defect involving the heart
ventricular septal defect - a common congenital heart defect; an abnormal opening in the septum dividing the ventricles allows blood to pass directly from the left to the right ventricle; large openings may cause congestive heart failure