Usefulness of Background Coloration in Detection of Esophago-Pharyngeal Lesions Using NBI Magnification

Table 2

Significant correlation was seen between tumor depth and presence of BC, 𝑃<0.0001.

	LGN/nonatypia	HGN/T1a-EP	T1a-LPM	T1a-MM/T1b-SM
BC (+)	22	74	70	43
	(24.4%)	(82.2%)	(98.6%)	(100%)
BC (−)	68	16	1	0
	(75.6%)	(17.8%)	(1.4%)	(0%)
Total	90	90	71	43