Endocrine Abstracts

FTC (OMIM #211900) is a rare autosomal recessive disorder characterized by the presence of ectopic calcifications in the skin and subcutaneous tissues. These calcified masses look like irregular tumors which usually develop in a periarticular position, causing pain and often necessitating surgical excision. The majority of affected individuals have hyperphosphatemia due to increased renotubular reabsorption of phosphate and elevated levels of serum 1,25-dihydroxyvitamin D (cal...