The cause of nephrocalcinosis in systemic granulomatous disease is:
Nephrocalcinosis is deﬁned as calciﬁcation of the renal interstitium and tubules. It is associated with hypercalcemia, which occurs due to overproduction of vitamin D.
Overproduction of 1,25 dihydroxy vitamin D
Dystrophic calcification
Mutation in calcium sensing receptors
Increased reabsorption of calcium