Thirty patients were operated on during the past 15 years for primary hyperparathyroidism. In each case serum calcium and phosphate levels returned to normal following excision of a solitary parathyroid adenoma. In 27 patients the tumor was located in the cervical region while three were found in the mediastinum. A high prevalence of unsuspected thyroid neoplasm was seen including four cases of benign adenoma and three cases of follicular carcinoma.
Trout HH, Mulder DG. Surgery for Parathyroid Adenoma. Arch Surg. 1972;105(1):67-70. doi:10.1001/archsurg.1972.04180070065013