Medullary sponge kidney associated with distal renal tubular acidosis in a 5-year-old girl.
BACKGROUND
Medullary sponge kidney (MSK) is characterized by cystic dilatation of the inner medullary collecting ducts, which causes the kidneys to resemble a sponge.


METHODS
Although distal renal tubular acidosis (dRTA) is commonly observed in patients with MSK, we report a 5-year-old girl with MSK who had features of both dRTA (nephrocalcinosis, hypercalciuria, hypocitraturia) and proximal tubular dysfunction (hyperuricosuria, impaired tubular phosphate reabsorption and proteinuria).


CONCLUSIONS
Metabolic acidosis, hypercalciuria, hypocitraturia, tubular phosphate reabsorption and growth retardation in the patient improved with alkali therapy.
Kasap
Belde
B
Department of Pediatrics, Dokuz Eylül University, Inciralti, Izmir, Turkey.
Soylu
Alper
A
Oren
Oğuz
O
Türkmen
Mehmet
M
Kavukçu
Salih
S
D000141:Acidosis, Renal Tubular / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology*; D015415:Biomarkers / Q000097:blood / Q000652:urine; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007686:Kidney Tubules, Distal / Q000000981:diagnostic imaging / Q000378:metabolism / Q000473:pathology*; D007687:Kidney Tubules, Proximal / Q000473:pathology; D007691:Medullary Sponge Kidney / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology*; D009397:Nephrocalcinosis / Q000209:etiology / Q000473:pathology; D018084:Ultrasonography, Interventional; D014567:Urography
D015415:Biomarkers