Abstract
the differentiation of malignant from benign biliary lesion is challenging in clinical practice. Per-oral digital cholangioscopy (POCS) predicts malignancy in accordance to the visual impression of biliary lesions; whereas, probe-based confocal laser endomicroscopy (pCLE) via in vivo, real-time tissue examination. Currently, both pCLE and cholangioscopy classification systems are available; however, a comparison between these classification systems remains unknown. Aim: to compare the Paris classification criteria (pCLE) and the visual impression classification system (POCS) for the detection of malignancy in biliary lesions.
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