Table 3. Relationships between M-NBI diagnosis according to the VS classification system and histopathological diagnoses according to the revised VCL system for the biopsy group (n = 67).

		Histological grade from ER specimens				Total
		VCL category 3		VCL category 4/5
Diagnosis of M-NBI	Cancerous	18	(86 %)	41	(89 %)	59
	Non-malignant	3	(14 %)	5	(11 %)	8
	Total	21		46		67

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