Clinical course of patients with nonclassical 21-hydroxylase deficiency (21-OHD) diagnosed in infancy and childhood.

We report four cases of nonclassical 21-hydroxylase deficiency (21-OHD) diagnosed in neonate or early childhood. The four patients comprised a 6-year, 5-month-old male (case 1); a 3-year, 10-month-old female (case 2); a 13-year, 11-month-old female (case 3) and a 17-year, 1-month-old male (case 4). Cases 3 and 4 were siblings.