Familial Tumoral Calcinosis is related to tumoral calcinosis, hyperphosphatemic, familial, 1 and tumoral calcinosis, normophosphatemic, familial. An important gene associated with Familial Tumoral Calcinosis is FGF23 (Fibroblast Growth Factor 23). Affiliated tissues include bone and skin, and related phenotypes are subcutaneous nodule and bone pain