Peroral videocholangioscopy using narrow band imaging for early bile duct cancer (with video)
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We described the usefulness of peroral videocholangioscopy for diagnosis of early bile duct cancer. In addition, we introduce the observation of the lesion using narrow band imaging in combination with a conventional white light imaging.
KeywordsBile duct cancer POCS NBI
Conflict of interest statement
No conflicts of interest exist.
Video clip 1. White light imaging by peroral videocholangioscpy detected slightly reddish papillary lesions in the middle bile duct. Narrow band imaging showed fine surface mucosal structure and mucosal capillary microvessel of the papillary lesion compared to white light imaging. Supplementary material 1 (MPEG 10,635 kb)
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