患者,男,8岁,于1987年11月某日吃西瓜子时突然剧烈呛咳、呼吸困难、呕吐,持续10余分钟后缓解。之后半年里,反复阵发性干咳伴呼吸困难、喉鸣,但无明显唇紫绀及声嘶等症。感冒及剧烈活动易诱发。翌年5月～1989年9月,仅偶有干咳及睡眠时喉喘鸣。曾在多家医院作支气管哮喘治疗无效。于9月19日因剧烈运动后当晚剧烈干咳、气促、喉鸣、大汗、唇微紫绀,疑喉气管支气管炎收住院,经大剂量抗生素及对症等治疗无缓解。10月9日颈侧 Patient, male, 8 years old, suddenly severe cough, difficulty breathing and vomiting while eating watermelon seeds on a certain day in November 1987, and continued to relieve for more than 10 minutes. After six months, repeated paroxysmal dry cough with dyspnea, throat, but no obvious lip cyanosis and hoarseness embolism. Cold and intense activity easily induced. May the following year ~ September 1989, only occasional cough and sleep throat wheezing. In many hospitals for bronchial asthma treatment is invalid. Severe dry cough, shortness of breath, sweating, slight cyanosis of lip, suspicious laryngotracheal bronchitis were admitted to hospital on September 19 due to severe dry cough, heavy dose of antibiotics and symptomatic treatment after remission. October 9 neck side