가역적 성대마비의 원인이 된 비활성 부갑상선 선종 1예

Parathyroid adenoma is the most common cause of primary hyperparathyroidism with symptoms of fatigue, bone pain, abdominal pain, weakness, dyspepsia, and skeletal bone disease. However, vocal cord paralysis caused by parathyroid adenoma is extremely rare. A 72-year-old male presented with intermittent voice change for 10 years. Laryngeal endoscopy showed right vocal cord paralysis. Computed tomography revealed a 4 mm sized lesion behind of right thyroid. Fine needle aspiration was undertaken and the histology result was a parathyroid adenoma. We excised the parathyroid adenoma adjacent to the right recurrent laryngeal nerve. After excision of parathyroid adenoma, vocal cord paralysis has returned to normal. The patient is under observation for 6 months without recurrence. We report our experience of one rare case of parathyroid adenoma as a cause of vocal cord paralysis. (J Clinical Otolaryngol 2016;27:401-404)