부산대학교 도서관

Primary hyperparathyroidism is caused by parathyroidadenoma in the majority of cases and diagnosis is usuallymade biochemically. Pre-surgical localization of parathyroidadenoma is essential to limit the extent of surgery and avoidmissing them at ectopic sites. Anatomical and functional imagingare used for the localization, but may fail to identify thesmall and ectopic parathyroid adenoma. We present a case ofsmall sized ectopic parathyroid adenoma at unusual locationdetected by F-18 fluorocholine (FCH) PET/CT, where otherimaging modalities failed. The post-operative histopathologyconfirmed the diagnosis of ectopic parathyroid adenoma.