both serum calcium and parathyroid hormone levels decreased to the normal range of 2.02. mmol/L, and 51.3 ng/L respectively. Biopsy of the right fourth rib identified a giant-cell brown tumor ...

intact parathyroid hormone, calcium, inorganic phosphorus, alkaline phosphatase and creatinine levels, urinary excretion levels of the N-telopeptide of type 1 collagen, and bone biopsy.