PTH and primary hyperparathyroidism: The biology confirmed the high level of calcium at 3.43 mmol/L, associated to a low level of phosphorus at 0.53 mmol/L [0.74–1.50 mmol/L], a low level of 25‐hydroxyvitamin D at 12.5 ng/ml [30‐50 ng/ml], a normal albumin level at 43 g/L, and a very important level of parathormone PTH 1325.62 pg/ml [10‐55 pg/ml] (20 fold the normal level), confirming the diagnosis of primary hyperparathyroidism.