Bile Duct Intraductal Papillary Neoplasm with an Associated Invasive Carcinoma

No epidemiology observation is attached to this entity. Population statistics come from registries (SEER, CDC WONDER) and the IARC Global Cancer Observatory; IARC data stays under license review and SEER awaits credentials, so no burden figure is displayed. Statistics are attached per geography, year and sex — never invented or extrapolated.