A Case of Distal Renal Tubular Acidosis Associated with Medullary Sponge Kidney

Renal tubular acidosis is a clinical state of systemic hyperchloremic acidosis resulting from impaired urine acidification. Medullary sponge kidney is a renal parenchymal malformation characterized by cystic dilatation of the collecting ducts. Although medullary sponge kidney is a congenital disease, it is rarely identified in childhood and is usually discovered in adulthood. Medullary sponge kidney patients may have defects in urinary acidification and concentration mechanism. We experienced a case of distal renal tubular acidosis associated with medullary sponge kidney. So, we report a case of distal renal tubular acidosis associated with medullary sponge kidney with a brief review of the related literature.