Fig. 5From: Non-invasive intraductal oncocytic papillary neoplasm forming a protruding lesion toward the duodenum from the accessory papilla: a case reportHistological findings of the resected specimen. a, b Cells with eosinophilic cytoplasm, deeply stained nuclei, and mucus increased papillary were identified on HE staining. c MUC5AC, d MUC6, and e HepPar-1 were positive on immunohistochemical staining. f MUC2 was only partially positiveBack to article page