患者，男，４８岁。因进行性声嘶３月，在他院诊为喉炎予以对症治疗，症状无好转，且声嘶逐渐加重。患者自发病以来，无鼻塞、回吸性血痰，无明显头痛，无咽喉疼痛、咽异物感，无发热、咳嗽、咳痰、呼吸困难，无耳鸣及明显听力下降，食欲、睡眠及大小便正常。查体示心肺腹无明 Patient, male, 48 years old. Due to progressive hoarseness in March, in his hospital for laryngitis symptomatic treatment, no improvement in symptoms, and hoarseness gradually aggravated. Since the onset of patients, no nasal obstruction, back to the bloody sputum, no obvious headache, no sore throat, pharyngeal foreign body sensation, no fever, cough, sputum, dyspnea, no tinnitus and significant hearing loss, appetite, sleep and normal urine . Physical examination revealed no obvious heart and lung