Narrow Band Imaging with Magnification Can Pick Up Esophageal Squamous Cell Carcinoma More Efficiently Than Lugol Chromoendoscopy in Patients after Chemoradiotherapy

Table 2

Biopsy results displayed based on NBI with magnification results (number of lesions).

	SCC or HGIN	LGIN or no tumor	Total
NBI-positive	6	1	7
NBI-negative	0	65	65
Total	6	66	72

All 72 lesions were Lugol-positive. SCC: squamous cell carcinoma, HGIN: high-grade intraepithelial neoplasia, LGIN: low-grade intraepithelial neoplasia, NBI: narrow band imaging.