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Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Jul 14, 2014; 20(26): 8449-8457
Published online Jul 14, 2014. doi: 10.3748/wjg.v20.i26.8449
Table 1 Pit pattern classification
Kudo et al[8] classDescriptionMost likely histologyNeoplastic/non-neoplasticTreatment
IRound cryptsNormal mucosaNon-neoplasticNone
IIRegular wider or stellar cryptsHyperplastic polyp (also sessile serrated adenomas)Non-neoplasticNone if rectosigmoid and ≤ 5 mm/endoscopic resection
IIILElongated or roundish cryptsAdenomaNeoplasticEndoscopic resection
IIIsTubular or roundish pits smaller than the normal cryptsIntramucosal/superficial invasive cancerNeoplasticEndoscopic resection
IVBranch-like or gyrus-like cryptsAdenomaNeoplasticEndoscopic resection
ViIrregular cryptsSuperficial invasive/deep invasive cancerNeoplasticSurgery/endoscopic resection in selected cases
VnNon-structural cryptsDeep submucosal invasive cancerNeoplasticSurgery
Table 2 Capillary pattern classification determined from narrow band imaging with magnification
Sano et al[29] classification
CPICPIICPIIIACPIIIB
Capillary patternAbsentPresentPresent
Meshed capillary vessels with blind endings, branching and curtailed irregularity
Capillary characteristics-Vessels surrounding glandsLack of uniformity, high density of vesselsNearly avascular or loose microvessels
Most likely histologyNormal or hyperplastic polypAdenoma or intramucosal carcinomaSuperficial submucosal invasive carcinoma (sm1)Deep submucosal invasive carcinoma
TreatmentNonePolypectomy or endoscopic mucosal resectionPolypectomy or endoscopic mucosal resection/surgerySurgery
Table 3 Narrow band imaging-international colorectal endoscopic classification as determined by narrow band imaging with/without magnification
Type 1Type 2Type 3
ColorSame or lighter than backgroundBrownBrown or dark brown Occasional white patchy areas
VesselsNone or isolated lacy vesselsBrown vessels surrounding white structuresAreas of disrupted or missing vessels
Surface patternDark or white spots of uniform size or homogeneous absence of patternOval, tubular or branched white structures surrounded by brown vesselsAmorphous or absent surface pattern
Most likely histologyHyperplastic polypAdenoma or intramucosal or superficial submucosal invasive carcinoma (sm1)Deep submucosal invasive carcinoma
TreatmentNonePolypectomy or endoscopic mucosal resectionSurgery