PTH and hypercalcemia disease: Patient 7 suffered hypercalcemia with peak level of 3.41 mmol/L and high plasma parathyroid hormone (PTH) with level of 830.78 pg/ml, he received CRRT to treat hypercalcemia, and a neck computed tomography (CT) scan showed one enhancing nodule (10 mm in diameter) in the rear of the right lobe of his thyroid gland.