PATHOLOGICAL PEDIATRIC DIAPHYSEAL FEMUR FRACTURE SECONDARY TO DISTAL RENAL TUBULAR ACIDOSIS : A CASE REPORT

Distal renal tubular acidosis (RTA type I) is a rare renal disorder characterized by hypokalemia and non-anion gap hyperchloremic metabolic acidosis. RTA often presents with renal stone disease with nephrocalcinosis, ricket/osteomalacia and growth retardation in children with ultimate short stature in adulthood. The case reported by us has distal renal tubular acidosis with hypokalemic metabolic acidosis with bilateral nephrolithiasis with rickets with pathological fracture shaft of right femur. All these features presenting in a single case (as in our case) is a rare occurrence, so far other cases of distal renal tubular acidosis (dRTA) have been reported.