Update in version 2021 of CSCO guidelines for colorectal cancer from version 2020

摘要

Colorectal cancer(CRC) is one of the major cancers threatening life and health of Chinese residents. According to the latest data released by the National Cancer Center in2015(1), there were 387,000 new cases and 187,100 deaths of CRC in China, accounting for 9.87% and 8.01% of all malignancies. The first version of the Chinese Society of Clinical Oncology(CSCO) guidelines was released in April2017, and has been updated annually based on the latest clinical research data and the availability of new drugs(2-4). Here, we present the main updates of the 2021 version compared to 2020 version.