Open AccessEndoscopic diagnosis for colorectal sessile serrated lesions
Author(s) -
Toshihiro Nishizawa,
Shuntaro Yoshida,
Akira Toyoshima,
Toshimoto Yamada,
Yoshiki Sakaguchi,
Taiga Irako,
Hirotoshi Ebinuma,
Takanori Kanai,
Kazuhiko Koike,
Osamu Toyoshima
Publication year - 2021
Publication title -
world journal of gastroenterology
Language(s) - English
Resource type - Journals
eISSN - 2219-2840
pISSN - 1007-9327
DOI - 10.3748/wjg.v27.i13.1321
Subject(s) - medicine , colonoscopy , colorectal cancer , pathology , cancer
Hyperplastic polyps are considered non-neoplastic, whereas sessile serrated lesions (SSLs) are precursors of cancer via the ''serrated neoplastic pathway''. The clinical features of SSLs are tumor size (> 5 mm), location in the proximal colon, coverage with abundant mucus called the ''mucus cap'', indistinct borders, and a cloud-like surface. The features in magnifying narrow-band imaging are varicose microvascular vessels and expanded crypt openings. However, accurate diagnosis is often difficult.