Other bone metabolism abnormalities included hypophosphatemia levels of 0.42 mmol/L (0.74-1.51), PTH levels of < 4 ng/mL (12-58), 1-25 OH vitamin D levels of 100 pg/mL (< 85), 25 OH vitamin D levels of 9 ng/ml (> 30) and calcitonin (as a tumor maker) levels of 1116 ng/mL (< 10). Here, PTH is linked to neoplasm.