The most common cause of primary hyperparathyroidism is parathyroid adenoma. Up to 20% of parathyroid ademomas has been reported to be in ectopic localization.
Ectopic parathyroid glands can also become adenamatous, causing a diagnostic dilemma when they are difficult to localize preoperatively.
We report a case of intrathymic parathyroid adenoma that was localized preoperatively by Technetium MIBI SPECT and treated surgically via assisted Thoracoscopic surgery and developing hungry bone syndrome after surgery.