头颈癌病人常发生重复癌,文献报道其发生率在6.5～35%间。作者们对81例新诊断而未经治疗的上呼吸消化道粘膜癌症病人进行了连续全套内窥镜检查的前瞻性研究。每个病人均先做间接喉镜及胸部X线检查,若有症状,还做食管钡餐造影。然后在全麻下镜检,先做支气管镜,然后用5mm细管做气管内插管,再做食管镜及喉镜检查。最后用手指触诊舌、扁桃体和口咽部。诊断同时发生的重复癌的标准是:①组织学证实为恶性肿瘤;②每一癌灶都是孤立的,被正常粘膜分隔;③第二癌灶不是第一原发癌的转移 Repeated cancers often occur in patients with head and neck cancers, and the incidence in the literature is between 6.5 and 35%. The authors conducted a prospective, continuous endoscopic study of 81 newly diagnosed and untreated patients with upper respiratory tract mucosal cancer. Each patient underwent indirect laryngoscopy and chest X-ray examination. If symptoms were present, esophageal barium meal was also performed. Then under general anesthesia under a microscope, first do bronchoscopy, and then use 5mm tubules for endotracheal intubation, and then do esophagoscopy and laryngoscopy. Finally touch the tongue, tonsils, and oropharynx with your fingers. The criteria for the diagnosis of simultaneous recurrent cancers are: 1 histologically proven malignant; 2 each lesion is isolated and separated by normal mucosa; 3 the second lesion is not the metastasis of the first primary cancer