Abstract
Acute renal injury in medullary sponge kidney Medullary sponge kidney is a benign renal anatomical alteration often diagnosed upon investigation of nephrolithiasis. This article describes the case of a patient diagnosed with medullary sponge kidney during an episode of acute kidney injury caused by elevated serum uric acid levels. The patient sought medical treatment at the Brasilia university hospital presenting with hematuria, back pain and chills, uremia, elevated serum creatinine and marked hyperuricemia. Ultrasonography of the kidneys showed nephrocalcinosis, confirmed by CT scan. The results were highly suggestive of the diagnosis of medullary sponge kidney. There was a significant improvement in renal function with reduction of hyperuricemia, hydration and urine alkalinization.
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