<prompt> The cause of nephrocalcinosis in systemic granulomatous disease is:Overproduction of 1,25 dihydroxy vitamin DDystrophic calcificationMutation in calcium sensing receptorsIncreased reabsorption of calcium  <response>: Nephrocalcinosis is defined as calcification of the renal interstitium and tubules. It is associated with hypercalcemia, which occurs due to overproduction of vitamin D. 