Table 2. Relationships between M-NBI diagnosis according to the VS classification system and histopathological diagnoses according to the revised VCL system for the non-biopsy group (n = 32).

		Histological grade from ER specimens				Total
		VCL category 3		VCL category 4/5
Diagnosis of M-NBI	Cancerous	3	(30 %)	21	(95 %)	24
	Non-malignant	7	(70 %)	1	(5 %)	8
	Total	10		22		32

M-NBI, magnifying endoscopy with narrow-band imaging; VS, vessel plus surface; ER, endoscopic resection; VCL, Vienna classification.