JNET types 1, 2A, 2B and 3 correspond to the histopathological classifications of hyperplastic polyp/SSP, low-grade intramucosal neoplasia (LGN), high-grade intramucosal neoplasia (HGN)/shallow SM invasive cancer, and deep SM invasive cancer, respectively.

2018年4月14日 · This classification consists of four categories: JNET type 1, type 2A, type 2B, and type 3. Each type represents the histological features of the polyps, and they are categorized by focusing on two specific features, vessel pattern and surface pattern (Figs 1,2).

We aimed to provide an overview of polyp classification techniques to help surgeons select the correct treatment algorithm for advanced colorectal lesions based on their visual characteristics at index endoscopy. Widespread screening has increased the detection of …

Our review revealed the usefulness of the JNET classification, in that it accurately differentiated malignant polyps (type 2B, 3) from benign (type 2A). It should be noted that 37.3%-70.6% of deep submucosal invasive cancers showed type 2B findings, magnifying chromoendoscopy is recommended before high-risk endoscopic resection for deep ...

2018年11月5日 · This document discusses the JNET classification of colorectal polyps based on narrow-band imaging (NBI) endoscopy. It provides a brief history of NBI development and discusses the need for a new universal polyp classification system.

2014年6月6日 · The JNET introduced an NBI-magnifying endoscopic classification system for colorectal polyps in 2014 [36, 38]. The JNET system classifies colorectal polyps into four types (Types 1, 2A, 2B, and...

2020年10月30日 · The JNET classification consists of four categories of vessel and surface patterns, i.e., Types 1, 2A, 2B, and 3. Types 1, 2A, 2B, and 3 are correlated with the histopathological findings of hyperplastic polyp/sessile serrated polyp (SSP), low-grade adenoma, high-grade adenoma, and deep submucosal invasive cancer, respectively [ 15 ].

2024年9月5日 · The majority of the JNET type 2A lesions are low-grade adenomas, and the rate of T1b cancer in JNET type 2A lesions is extremely low. Therefore, it is generally indicated for endoscopic resection methods such as polypectomy.

This study examined the diagnostic yield of magnifying NBI based on the Japan NBI Expert Team (JNET) classification in a clinical setting using a large-scale clinical practice database.

2018年4月14日 · A two-step process for the Paris classification is introduced: First, detecting and cropping the polyp on the image, and secondly, classifying the polyp based on the cropped area with a ...