Colonic polyps: Is it useful to characterize them with advanced endoscopy?

Table 2 Capillary pattern classification determined from narrow band imaging with magnification

	Sano et al[29] classification
	CPI	CPII	CPIIIA	CPIIIB
Capillary pattern	Absent	Present	Present
			Meshed capillary vessels with blind endings, branching and curtailed irregularity
Capillary characteristics	-	Vessels surrounding glands	Lack of uniformity, high density of vessels	Nearly avascular or loose microvessels
Most likely histology	Normal or hyperplastic polyp	Adenoma or intramucosal carcinoma	Superficial submucosal invasive carcinoma (sm1)	Deep submucosal invasive carcinoma
Treatment	None	Polypectomy or endoscopic mucosal resection	Polypectomy or endoscopic mucosal resection/surgery	Surgery