Persistent Pseudohypoaldosteronism in a 7-Year-Old Boy

Pseudohypoaldosteronism has been described as a syndrome presenting early in life with profound salt wastage, failure to thrive, and lethargy. The mechanism of sodium loss is renal, not related to aldosterone production. Previous cases have been transient, responding to supplemental salt therapy which was discontinued after one to two years. A child whose pseudohypoaldosteronism was first diagnosed in infancy and whose salt loss persisted to 7 years of age is described.