Colorectal serrated lesions (CSL) are a heterogeneous group of lesions characterized by serrated features in crypt epithelium. According to the latest WHO classification standards,CSL are mainly divided into hyperplastic polyps (HP),sessile serrated lesions (SSL) and traditional serrated adenomas (TSA),with the latter two being the main types of precancerous lesions in colorectum. Approximately one-third of colorectal cancer cases develop through the serrated pathway. This article mainly focuses on the pathological classification,carcinogenetic pathways,diagnosis,treatment,and follow-up monitoring of CSL,aiming to improve the understanding of CSLs and provide a new perspective for the prevention and treatment of colorectal cancer in the future.
NETL
NSTL
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