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  • Title: Endoscopic and histologic characteristics of serrated lesions.
    Author: Moussata D, Boschetti G, Chauvenet M, Stroeymeyt K, Nancey S, Berger F, Lecomte T, Flourié B.
    Journal: World J Gastroenterol; 2015 Mar 14; 21(10):2896-904. PubMed ID: 25780286.
    Abstract:
    In recent years, a second pathway for colonic carcinogenesis, distinct from the adenomatous pathway, has been explored. This is referred to as serrated pathway and includes three types of polyp, characterised by a serrated appearance of the crypts: hyperplastic polyps (HP), sessile serrated adenomas (SSA) or lesions, and traditional serrated adenomas. Each lesion has its own genetic, as well as macroscopic and microscopic morphological features. Because of their flat aspect, their detection is easier with chromoendoscopy (carmin indigo or narrow-band imaging). However, as we show in this review, the distinction between SSA and HP is quite difficult. It is now recommended to resect in one piece as it is possible the serrated polyps with a control in a delay depending on the presence or not of dysplasia. These different types of lesion are described in detail in the present review in general population, in polyposis and in inflammatory bowel diseases patients. This review highlights the need to improve characterization and understanding of this way of colorectal cancerogenesis.
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