A Case of Mediastinal Bronchogenic Cyst Presenting with Hoarseness

抄録

Bronchogenic cysts are cystic lesions derived from an abnormal lung bud originating from the foregut and are often discovered incidentally on imaging. We report a case of a bronchogenic cyst presenting with hoarseness, a rare symptom. A 44-year-old man with a history of hypertension and hyperuricemia presented to our hospital with a chief complaint of hoarseness. The chest x-ray showed an enlarged mediastinal shadow. Chest computed tomography (CT) revealed a tumor measuring 9 cm in diameter in the middle mediastinum, under the aortic arch. Contrast-enhanced CT revealed an internally homogeneous tumor with contrasted margins. Since a symptomatic bronchogenic cyst was suspected, we performed surgery. Intraoperative findings showed the tumor was large and strongly adherent to adjacent structures. Therefore, we performed a partial resection of the tumor wall, preserving the vagus and recurrent nerves, but could not perform a complete resection. Histopathological examination confirmed the diagnosis of a bronchogenic cyst. The patient showed an uneventful postoperative course, and his hoarseness gradually improved and disappeared approximately 3 months after the surgery. We report a case of mediastinal bronchogenic cyst presenting with hoarseness. Hoarseness was induced by a bronchogenic cyst, and tumor resection improved the symptoms.