Figure 2 (Left) Superficial spreading of small papillary protrusion is observed on the hilar side of the primary lesion (pink arrow) on peroral cholangioscopy. (Right) Probe-based confocal laser endomicroscopy shows dark, regularly arranged papillary structures with regular margins compared to the primary lesion which was suspected adenocarcinoma, suggesting a tumor with a lower degree of atypia than the primary lesion. [Colour figure can be viewed at wileyonlinelibrary.com]

中文翻译：

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经口胆管镜引导探针共聚焦内镜准确诊断胆管癌异型性程度

图 2（左）在经口胆管镜检查中，在原发病变（粉红色箭头）的肺门侧观察到小的乳头状突起的浅表扩散。（右）基于探针的共聚焦激光内窥镜检查显示，与疑似腺癌的原发病变相比，具有规则边缘的深色、规则排列的乳头状结构，表明肿瘤的异型性低于原发病变。[色图可在 wileyonlinelibrary.com 查看]