Neoadjuvant therapy of colorectal cancer        GU Jin, DU Jing-zeng. Department of Colorectal Surgery, Beijing Cancer Hospital ,Beijing100142,China
Corresponding author:GU Jin, E-mail: zlguj@yahoo.com.cn
Abstract    The principles of neoadjuvant therapy in colorectal cancer are as follows: 1. Rectal cancer patients of stage II and III should under neoadjuvant therapy. Specific strategies could be radiotherapy or with concurrent chemotherapy. Chemotherapy alone is not recommended. 2. Neoadjuvant chemotherapy is not recommended in colon cancer patients without metastasis. It is suggested only for patients with resectable liver metastasis to achieve the aim of tumor recession and diminishing micrometastasis.