Colorectal adenocarcinoma represents one third of human caners worldwide. It results from cumulative genetic mutations. the incidence of colorectal carcinoma is rising, so, detecting new therapeutic modalities is important. Wilms' Tumor 1 (WT1) gene is a tumor suppressor gene. in certain tumors; WT1 acts as an oncogene, facilitating tumor growth and spread. WT1 is also involved in angiogenesis. we decided to detect expression of WT1 in 60 patients with colorectal adenocarcinoma and detect any association between WT1 expression and certain tumor oarameters as perineural invasion, lymphovascular invasion, lymph node metastasis.