PTH and adenoma: Hence, our findings support that with proper patient selection, appropriate and adequate preoperative imaging for adenoma localization, and intraoperative PTH monitoring, a thoracoscopic parathyroidectomy is safe and feasible option in the surgical management of PHPT secondary to an ectopic mediastinal parathyroid adenoma in pediatric patients (7, 11, 12, 23, 30, 31).