gallbladder papillary neoplasm (Monarch Disease Ontology entry MONDO_0002518) is a non-invasive, papillary epithelial neoplasm that arises from the epithelium of the gallbladder. Intraepithelial neoplasia is present. Also known as: gall bladder papillary epithelial neoplasm, gallbladder papillomatosis, intracystic papillary neoplasm.