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:什么是喉气囊肿?

来源:华人健康网 | 发布时间:2010-12-02 07:12:56 | www.chinesejk.com
喉气囊肿又名喉膨出喉憩室或喉气性疝为喉室小囊的异常扩张含气体婴幼儿喉室小囊较大般为~mm少数可大至~mm小囊甚大者名为先天性喉气囊肿成人喉气囊肿的形成多与喉室小囊先天性异常加之慢性咳嗽吹号举重喉肿瘤等使喉室小囊内压力增大扩张所致按气囊肿的位置分喉内喉外和喉内外混合型气囊肿位于喉内者为喉内型此型有两种种自喉室突出将喉室带推向上遮住同侧声带甚至延伸至对侧梗阻声门;另种从杓会厌皱襞突起使同侧喉变形甚至有的向上伸延至舌根部位于会厌谷处气囊肿出现于颈部者为喉外型该型多从甲状舌骨膜喉上神经和血管处穿出位于舌骨下胸锁乳突肌前缘;亦有自环甲膜穿出位于甲状软骨下方者混合型为气囊肿同时出现于喉内和颈部在甲状舌骨膜处有峡部相连

(编辑:阳阳 )

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