Korean J Endocr Surg.
2005 Dec;5(2):121-125. 10.16956/kjes.2005.5.2.121.
Functional Parathyroid Cyst: A case report
- Affiliations
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- 1Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. jjong126@paran.com
- KMID: 2375963
- DOI: http://doi.org/10.16956/kjes.2005.5.2.121
Abstract
- Parathyroid cysts are uncommon lesions of the neck and superior mediastinum, rarely large enough to be of clinical significance. They frequently present as a clinical diagnostic problem. They may mimic solitary thyroid nodule. They can be classified as either functioning or non-functioning depending on whether or not they are associated with hypercalcemia. Non-functioning or "true" cysts are those associated with normocalcemia (85%), whereas functioning or "pseudocysts" are those associated with hypercalcemia (15%). The presence of a high content of intact parathyroid hormone (intact PTH) in the cystic fluid on fine-needle aspiration (FNA), in conjunction with an elevated serum calcium and intact PTH is diagnostic of a functional parathyroid cyst. A functional parathyroid cyst usually requires surgical removal. We report herein one case of functional parathyroid cyst.
