Pediatrics General 56c3d027 Familial hypocalciuric hypercalcemia has mild elevation of calcium and PTH levels. It occurs secondary to what mutation? A Missense mutation of mitochondrial calcium receptor B Missense mutation of ribosomal calcium surface protein C Missense mutation of Golgi complex receptor D Mutation of calcium - sensing receptor(CaSR) High-Yield Explanation No explanation provided.