Hyperphosphatemic tumoral calcinosis.

Tumoral calcinosis is a rare syndrome characterized by progressively growing and painless masses of calcium phosphate deposits within periarticular areas. Biochemical findings are normal except for an association with hyperphosphatemia. This report describes hyperphosphatemic tumoral calcinosis in a 22-year-old man who had been operated on five times in 5 years because of painless extremity swellings.