Journal of Korean Endocrine Society 2003;18(2):214-220.
Published online April 1, 2003.
A Case of Cystic Parathyroid Adenoma Presenting as Severe Bony Lesion.
Suk Chon, Young Hee Kim, Ji Young Park, Kwan Pyo Ko, Cheol Young Park, Deog Yoon Kim, Jeong Taek Woo, Sung Woon Kim, Jin Woo Kim, Young Seol Kim, Suck Hwan Go
1Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea.
2Department of General Surgery, College of Medicine, Kyung Hee University, Seoul, Korea.
A cystic parathyroid adenoma is rare. A case of primary hyperparathyroidism, with the cystic formation of a parathyroid adenoma and a severe bony lesion, is reported. A 52-year-old male was admitted due to pain in both hips and for evaluation of hypercalcemia. The plasma level of the intact parathyroid hormone(iPTH) was elevated to 1424pg/mL. Ultrasonography and the computed tomography revealed a parathyroid cyst on the left thyroid lower pole. Parathyroid scintigraphy detected a parathyroid adenoma. A radiograph showed a subperiosteal bone resorption on the phalanges, and a brown tumor(osteitis fibrosa cystica) on the femur shaft was noted. A surgical excision of the parathyroid adenoma was performed. The PTH level in the cystic fluid was increased. A histological examination confirmed a cystic parathyroid adenoma. The PTH level was normalized after the operation.
Key Words: Parathyroid neoplasms, Cysts, Adenoma, Hyperparathyroidism, Osteitis fibrosa cystica

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