Subglottic cyst is a rare cause of laryngeal tinnitus in infants and young children, and only a few cases have been reported at home and abroad. In this paper, we report the clinical characteristics and treatment experience of three cases of subglottic cysts in Children's Hospital of Nanjing Medical University. All the 3 childrem were prematurechildren, with a history of tracheal intubation, and the main symptoms were coughing and wheezing.Electronic nasopharyngolaryngoscopy revealed spherical neoplasm under the glottis. Neck computed tomography （CT） showed a slightly hypodense shadow with poorly defined borders, and no significant enhancement was observed after enhancement. Under the self-retaining laryngoscope, the new organisms were clamped and nibbled, and the cyst wall was cauterized by low temperature plasma. There was no recurrence in postoperative follow-up.
摘要: 声门下囊肿是婴幼儿喉鸣的一种少见病因，国内外见少量相关报道。本文报道南京医科大学附属儿童医院诊治3例声门下囊肿患儿的临床特征及诊疗经验。3例患儿均为早产儿，均有气管插管史，症状主要为咳喘，电子鼻咽喉镜检查见声门下见球形新生物。颈部CT呈稍低密度影，边界欠清，增强后未见明显强化。治疗支撑喉镜下钳夹咬除新生物，低温等离子烧灼囊壁。术后随访均未复发。.
Keywords: infants and young children; laryngeal stridor; premature delivery; subglottic cyst.
Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.