[Normocalcemic primary hyperparathyroidism. Skeletal scintigraphy findings indicated a metastatic malignant disease]

The article reports a patient with skeletal pain were radionuclide skeletal images (100 MBq 99mTc-methylenediphosphonate) suggested a metastatic neoplastic lesion as the underlying cause. Further examination revealed that the patient suffered from normocalcemic primary hyperparathyroidism, and after removal of an adenoma of the parathyroid gland the images normalised and the skeletal pain disappeared.