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©The Author(s) 2025.
World J Gastrointest Endosc. Sep 16, 2025; 17(9): 109144
Published online Sep 16, 2025. doi: 10.4253/wjge.v17.i9.109144
Table 4 Japanese Narrow Band Imaging Expert Team classification
JNET type
Vessel pattern
Surface pattern
Most likely histology
1InvisibleRegular dark or white spots, similar to surrounding normal mucosaHyperplastic polyp/sessile serrated polyp
2ARegular caliber and regular distributionRegularLow grade intramucosal neoplasia
Tubular/branched/papillary
2BVariable caliber, irregular distributionIrregular or obscureHigh grade intramucosal neoplasia
3Loose vessel areas, interruption of thick vesselsAmorphous areasDeep submucosal invasive cancer


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