Pediatrics A 3 – month old infant presents with bilateral medullary nephrocalcinosis. All of the following can cause medullary nephrocalcinosis except : A Hyperoxaluria B Bartter's syndrome C Prolonged use of furosemide D ARPKD 💡 Explanation A 3 – month old infant presents with bilateral medullary nephrocalcinosis. All of the following can cause medullary nephrocalcinosis except : ✓ Correct Answer: D. ARPKD