小儿气道异物为耳、鼻、喉科急诊，对一些病史症状体征典型的患儿可即刻作支气管镜检查，而对一些病史症状体征不典型而临床又不能排除异物者，即刻作支气管镜检查往往得不到医患双方的配合。而术前应用螺旋ＣＴ来确诊，不失为一种可行方法。我科自１９９７年以来对１９例不典 Pediatric airway foreign body for the ear, nose and throat emergency, for some history of symptoms and signs typical of children with bronchoscopy can be immediately, but for some history of atypical symptoms and signs of clinical and can not rule out foreign bodies, immediately for bronchoscopy Often do not get the cooperation of both doctors and patients. Preoperative application of spiral CT to diagnose, after all, a viable approach. Our department has had 19 cases of atypical pneumonia since 1997