In vivo and ex vivo confocal endomicroscopy of pancreatic cystic lesions: A prospective study

Figure 6 In vivo endoscopic ultrasound guided needle based confocal laser endomicroscopy, ex vivo confocal laser endomicroscopy, and histopathology of lymphoepithelial cyst. Confocal laser endomicroscopy images, A (in vivo) and B (ex vivo) reveal clusters of bright particles representing keratin flakes. Macroscopically the lesion was filled with yellowish pasty material which by microscopy (panel C) demonstrated keratin flakes. The cyst was lined by squamous epithelium surrounded by abundant lymphoid tissue (panel D; HE, × 40).