摘要
AIM： To demonstrate the necessity of intraoperative endoscopy in the diagnosis of secondary primary tumors of the upper digestive tract in patients with obstructive hypopharyngeal carcinoma. METHODS： Thirty-one patients with hypopharyngeal squamous cell carcinoma had been operated, with radical intent, at our Institution in the period between 1978 and 2004. Due to obstructive tumor mass, in 7 （22.6%） patients, preoperative endoscopic evaluation of the esophagus and stomach could not be performed. In those patients, intraoperative endoscopy, made through an incision in the cervical esophagus, was standard diagnostic method for examination of the esophagus and stomach. RESULTS： We found synchronous foregut carcinomas in 3 patients （9.7%）. In two patients, synchronous carcinomas had been detected during preoperative endoscopic evaluation, and in one （with obstructive carcinoma） using intraoperative endoscopy. In this case, preoperative barium swallow and CT scan did not reveal the existence of second primary tumor within esophagus, despite the fact that small, but T2 carcinoma, was present. CONCLUSION： It is reasonable to use intraoperative endoscopy as a selective screening test in patients with obstructive hypopharyngeal carcinoma.
瞄准：与妨碍的低亚硫酸钠在病人在上面的消化道的第二等的原发性瘤的诊断表明 intraoperative 内视镜检查法的必要性咽头的癌。方法：有低亚硫酸钠的 31 个病人咽头的有鳞的房间癌被操作了与激进的目的，在我们在在 1978 和 2004 之间的时期的机构。由于妨碍的肿瘤集中，在 7 (22.6%) 病人，食管和胃的外科手术前的内视镜的评估不能被执行。在那些病人， intraoperative 内视镜检查法，在颈的食管通过一个切口做了，是为食管和胃的检查的标准诊断方法。结果：我们在 3 个病人(9.7%) 发现了同步前肠癌。在二个病人，同步的癌在外科手术前的内视镜的评估期间被检测了，并且在一个(与妨碍的癌) 用 intraoperative 内视镜检查法。在这种情况中，，外科手术前的钡燕子和 CT 扫描没在食管以内揭示第二个原发性瘤的存在小，但是 T2 癌，是在场的。结论：与妨碍的低亚硫酸钠把 intraoperative 内视镜检查法用作病人的选择屏蔽测试是合理的咽头的癌。
