Doctor Monteleone reports a patient with congenital adrenal hyperplasia who had permanent severe neurologic sequellae following DOC-induced hypertensive encephalopathy. Since the preparation of our previous manuscript, we have seen three additional children who have suffered from mineralocorticoid-induced hypertension following the implantation of DOC pellets. Our experience would indicate that this complication of mineralocorticoid therapy is much more common than previously recognized. The administration of some long-acting form of salt-retaining hormone is necessary in the infant with the salt-losing form of adrenal hyper plasia.