A Case of Adenoid Cystic Carcinoma of the Trachea

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  • 気管腺様嚢胞癌の 1 切除例

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Abstract

A 50-year-old man had a 17-month history of stridor, dyspnea and hyperimmunoglobulinemia E. He had been treated with various antiasthmatic medications without significant results. Routine PA X-ray revealed a vague soft tissue opacification which protruded into the tracheal air column. Tomography comfirmed the presence of a tumor in the upper third of the trachea. Fiberoptic bronchoscopy (FOB) showed a smooth-sufaced tracheal tumor which was diagnosed as adenoid cystic carcinoma. Accurate estimation of the tumor extension was difficult because the tumor grew submucosally. Adenoid cystic carcinoma is a low grade malignant tumor characterized by slow and local infiltrative growth and a prolonged clinical course. For the purpose of early diagnosis of adenoid cystic carcinoma of the trachea, chest tomography and FOB should be performed in patients who complain of persistent stridor and dyspnea during antiasthmatic treatment.

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