"In 1965 the dr. Angelo Digeorge described a group of patients with congenital absence of the thymus and thyroid that had low calcium and severe susceptibility to diseases"...explains Ruben paez . In 1981, studies citogeneticos showed the deleccion on chromosome 22q11,2, as the main cause of the anomaly. however have been linked to other diseases that exhibit the same characteristic fenotipica, in relation to the location of the defect by what you prefer to call currently anomaly Digeorge -
MD JORGE VILA