This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney disorders, Subject name: Pathology
Nephrocalcinosis is seen in all except: 
Select and explain. 
A. Sarcoidosis, B. Distal A, C. Milk alkali syndrome, D. Medullary cystic kidney
D: Medullary cystic kidney
Answer: D: Medullary cystic kidney 
Explanation: Nephrocalcinosis Diffuse deposition of calcium salts in the interstitium of the kidney associated with sarcoidosis, milk alkali syndrome and distal renal tubular acidosis Not associated with medullary cystic kidney. (DISTAL A= TYPE ONE A =STONE )