食管癌是我国常见肿瘤之一,其危害极大,因此对癌前病变的分级诊断,进行预防性治疗,降低癌的发病率是十分重要的研究课题。作者采用细胞测量方法对癌前病变分级: Esophageal cancer is one of the most common tumors in our country and its harm is extremely serious. Therefore, it is an important research topic to diagnose the precancerous lesions, perform preventive treatment, and reduce the incidence of cancer. The authors used a cell measurement method to grade precancerous lesions: