Familial DiGeorge syndrome with tetralogy of Fallot and prolonged survival

Two brothers with DiGeorge syndrome had tetralogy of Fallot with pulmonary valve atresia, illustrating similarity of the type of congenital heart disease (CHD) within affected families; the specific type of CHD differs between families. The late recognition of hypocalcemia in the older brother and his survival to age 21 years emphasizes the need to consider. DiGeorge syndrome in patients of all ages with hypocalcemia and congenital heart disease.