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Updated: Jul 10, 2026
"Sun's Seven-Step Technique" for Endoscopic En-Bloc Resection of Thyroid Cancer via the Chest-Breast Approach
Published on: November 28, 2025
Excision of postesophageal parathyroid adenoma in posterior mediastinum with intraoperative 99mTechnetium sestamibi
Toshihisa Ogawa1, Ei-ichi Tsuji, Hajime Kanauchi
1Department of Endocrine Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. e05021@h.u-tokyo.ac.jp
Abstract:
Although approximately 25% of parathyroid tumors in patients with primary hyperparathyroidism are located in the mediastinum, nearly all these tumors can be removed through cervical exploration. However, 1% to 2% of the mediastinal tumors require a transthoracic approach for removal. The mediastinal tumors are usually located in the inferior parathyroid gland, and the ectopic mediastinal tumors derived from the superior glands are extremely rare. We present a case of retroesophageal mediastinal parathyroid adenoma that developed in the left superior parathyroid gland. A thoracotomy was required to remove this tumor. Radioisotope-guided surgery was effective at identifying the tumor.
