[Parathyroid adenoma in pre-school age children].

Primary hyperparathyroidism in children is rare. The neonatal form involves hyperplasia of the parathyroid glands. In older children sporadic forms are usually due to an adenoma and familial forms are generally due to hyperplasia. Adenoma usually presents in adolescents. In the case presented herein, a parathyroid adenoma was excised from an 11-year-old girl with a history of sporadic hypercalcemia from the age of 5.5 years. The disease was discovered in serum chemistry and the patient presented no symptoms or conditions associated with hypercalcemia. Diagnosis was by preoperative imaging studies including 99mTc-sestabimi and surgical intervention stabilized calcium levels. Parathyroid adenoma occurs in pre-school age children and its diagnosis may be delayed because of the absence of symptoms.