目的:总结儿童声门下囊肿的临床特征及诊疗经验。方法:对2018年4月至2019年6月山东大学齐鲁儿童医院确诊的5例声门下囊肿患儿的临床资料进行回顾性分析。结果:5例患儿中2例为早产儿，3例为足月儿，均有气管插管史。1例一直无症状，其余4例有喉鸣，其中2例伴声嘶、呼吸困难，曾被误诊为喉软化症、喉炎等。支气管镜检查见声门下灰白色囊肿样病变，增强CT检查为低密度区，无强化。均给予激光及钳夹治疗，术后随访支气管镜5～12周，均无复发及声门下狭窄。结论:有气管插管史的患儿出现喉鸣应及时行支气管镜检查明确有无声门下囊肿，经支气管镜激光治疗是声门下囊肿的有效治疗方法。“,”Objective:To summarize the clinical features and experience in diagnosis and treatment of subglottic cysts in children.Methods:The clinical data of 5 children with subglottic cysts admitted in Qilu Children′s Hospital of Shandong University from April 2018 to June 2019 were retrospectively analyzed.Results:Among the 5 patients, 2 cases were premature infants and 3 cases were full term infants.All patients had an endotracheal intubation history.One patient was asymptomatic.Four patients had laryngeal stridor, 2 cases of whom were accompanied by hoarseness and dyspnea.These 2 patients were used to be misdiagnosed with laryngomalacia, laryngitis, etc.Bronchoscopy revealed subglottic gray-white cyst-like lesions, and enhanced CT showed low density without enhancement.All patients were treated with laser and forceps, and bronchoscope was applied in the follow up period for 5-12 weeks.There was no recurrence or subglottic stenosis.Conclusions:Laryngeal stridor in children with a history of endotracheal intubation must be examined by bronchoscopy in time to find out whether there is subglottic cysts.Laser therapy is an effective treatment for subglottic cysts.