Transient pseudohypoaldosteronism secondary to posterior urethral valves -A case report and review of the literature

In transient pseudohypoaldosteronism (TPHA), renal tubular resistance to al dosterone is thought to be secondary to renal disease. We report a case of TPHA caused by posterior urethral valves associated with urinary tract infe ction and review 62 cases previously reported. The infant presented with un specific signs of vomiting and dehydration, so that pyloric stenosis was fi rst suspected. Laboratory data and retroperitoneal sonography led to the di agnosis TPHA. This case illustrates that urine culture and renal ultrasonog raphy should be performed in any infant with electrolyte disturbances to ex clude infection or obstructive uropathy.