声門下Paragangliomaの1例

抄録

A case of laryngeal paraganglioma is reported. Laryngeal paraganglioma is a rare neoplasm, and this is the fourth case in Japan.
A 39-year-old woman had complained of occasional hemoptysis since December 1984, and was reffered to our clinic (Nagano Red Cross Hospital) in May 1985. There was a firm, tender swelling in the left side of her neck next to the cricoid cartilage. Indirect laryngoscope revealed a red, broad-stemmed, submucosal tumor just below the left vocal cord. Radiological examination showed a subglottic mass which was extending from the level of the cricoid cartilage downwards for approximately 1 cm. A biopsy of the neck tumor was performed and histological report was intramuscular hemangioma. In July 1985 the tumor was totally removed after a preliminary tracheostomy. The tumor was found to be located between the cricoid cartilage and the first tracheal ring. The histological diagnosis of the tumor was paraganglioma.
In the present paper the anatomy and terminology of the paraganglia and the clinical characteristics of the laryngeal paraganglioma are also discussed.