종격동의 부갑상선 낭종 - 1예 보고 -

Abstract

The mediastinal parathyroid cyst is a very rare cause of space occupying lesions in the mediastinum. We report a case of a non-functioning mediastinal parathyroid cyst that occurred in a 42 year-old male. He suffered from foreign body sensation of the throat whenever he was in the supine position. A chest computed tomography showed a round cyst with a narrow base attached to trachea. It was white and tan, thin-walled semi-transparent cyst containing yellow and tan serous fluid. Microscopically it was characterized by a thin fibrous wall lined with a single or double layer of uniform cells with clear cytoplasm and small nuclei. The lining cells were immunopositive for chromogranin A.