Methods 26 patients with laryngotracheal stenosis were included in this group . and of the 3 cases has diffusing thickening roughly in glottis ventricular fold and vestibule mucosa of larynx in which 2 cases showed the pharynx and trachea invaded near larynx ;

3例可见喉部黏膜的弥漫性的不 规则 的 软组织增厚，病变累及声门、喉室或喉 前庭等结构，其中2例向上累及 咽部 结构和向下浸润气管黏膜；