PurposeTo investigate the difference of expression of autophagy-related gene(Beclin1,LC3,m TOR)in the development of esophageal squamous cell cancer.Methods Immunohistochemical En Vision method was adopted to detect the expression of autophagy-related gene Beclinl,LC3 and m TOR in 30 cases of normal esophageal mucosa,32 cases of low-grade intraepithelial neoplasia(LGIN),34 cases of highgrade intraepithelial neoplasia(HGIN),35 cases of early carcinoma and 126 cases of advanced esophageal carcinoma,respective...