PTH and parathyroid gland adenoma: In these cases, a focused single gland parathyroid exploration can be performed with other adjuvants as the use of intraoperative PTH [8] however, approximately 16% of patients with HPT have an ectopic parathyroid gland and up to 2% of hyperfunctioning parathyroid adenomas are not accessible by a standard cervical surgical approach [9].