title: [Fine needle aspiration biopsy in the diagnosis of pancreatic and periampullary malignancy].
mesh_terms: D014670:Ampulla of Vater; D001707:Biopsy, Needle; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003581:Cytodiagnosis; D006801:Humans; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000473:pathology