喉软化症为喘鸣常见的先天性病因,而后天性病因多见喉囊肿、息肉、良性肿瘤或喉外组织陷入气道致狭窄,而发生喘鸣和周期性气道阻塞症状(AO)。作者见上述症状由组织学正常的声门上过多的软组织(RT),异常活动引起者3例,介绍用电视喉镜观察动态图象并在内镜下切除 RT 的经验。 Throat softening is a common congenital etiology of wheezing, and later causes of etiology include laryngeal cysts, polyps, benign tumors or extra-laryngeal tissues that fall into the airways causing stenosis and wheeze and periodic airway obstruction symptoms (AO). The authors see the above symptoms from histologically normal glottis excessive soft tissue (RT), abnormal activity in 3 cases, introduced the use of video laryngoscope dynamic images and endoscopic resection of RT experience.