The aim of this study was to identify risk factors of lymph node metastasis (LNM) for T2 rectal cancer.From a prospectively maintained single-institution database, we identified 346 consecutive pT2 rectal cancers treated with total mesorectal excision from 1998 to 2009. Univariate and multivariate analyses were performed to identify risk factors associated with overall and intermediate/apical LNM. The incidence of overall and intermediate/apical LNM was analyzed by tree analysis.Age, tumor location, pathological features, and depth of invasion were independent predictors for overall LNM. Tumor location, pathological features, and depth of invasion were independent predictors for intermediate/apical LNM. Tree analysis showed that the incidence of LNM was 7.7

作者：Pei-Rong, Ding；Xin, An；Yun, Cao；Xiao-Jun, Wu；Li-Ren, Li；Gong, Chen；Zhen-Hai, Lu；Yu-Jing, Fang；De-Sen, Wan；Zhi-Zhong, Pan

来源：Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract 2011 年 15卷 1期