Transient congenital hypoparathyroidism and 22q11 deletion

CATCH-22 syndrome represents a spectrum of abnormalities associated with microdeletions of chromosome 22q11. We report a patient with transient congenital hypoparathyroidism, with severe neonatal hypocalcemia and spontaneous resolution in infancy, tetralogy of Fallot and thymic hypoplasia. Genetic confirmation of chromosome 22q11 deletion was made. Newborns with congenital hypoparathyroidism need genetic analysis and examination for anomalies associated with CATCH-22 syndrome.