Table III.

Proposed microvascular classification system via NBI-ME for uterine cervical neoplasms.

Classification	Normal	CIN1	CIN2	CIN3	CIS	MIC	IC
Values
Vascular change	No vascular dilatation	Presence of dots	Presence of dots	Elongation of dots	Elongation of dots	Multi-caliber vessel changes	New tumor vessels (2x dilated vessels, like IPCL)
Arrangement	Regular	Regular	Regular	Irregular (slight)	Irregular (severe)	Irregular (severe)	Irregular (severe)
Density Postscript	Regular	Slight	Mild	High	High	High Crawling vessel	High Willow branch

Microvascular features of cervical neoplasms of every stage identified by NBI-ME. NBI-ME, narrow band imaging with magnification endoscopy; dots, dilation of intrapapillary protruded loop vessels; CIN, cervical intraepithelial neoplasia; CIS, carcinoma in situ; MIC, minimum invasive cancer; IC, invasive cancer; IPCL, intra-epithelial papillary capillary loop.