title: [Cystic pancreas tumors and their classification: features old and new].
abstract: Cystic tumors and tumor-like lesions of the pancreas are rare, but have attracted a great deal of attention because they are easily recognized with new imaging methods and, in contrast to ductal adenocarcinoma, they can usually be cured surgically. The increasing resection rate in recent years has also increased our knowledge of cystic pancreatic tumors by conspicuously enlarging their morphological spectrum. Known entities have been better characterized (i.e. solid pseudopapillary neoplasm, intraductal papillary mucinous neoplasm) and new ones described (serous oligocystic adenoma, mucinous non-neoplastic cyst, acinar cell cystadenoma and cystic hamartoma). This review discusses the most important cystic tumors and tumor-like lesions, presents a new classification, and summarizes the immunohistochemical differential diagnosis.
authors.affiliation: Institut für Allgemeine Pathologie, Universitätsklinikum Schleswig-Holstein--Campus Kiel, Michaelisstrasse 11, 24105 Kiel, Germany. mkosmahl@path.uni-kiel.de
authors.forename: M
authors.initials: M
authors.lastname: Kosmahl
authors.forename: U
authors.initials: U
authors.lastname: Pauser
authors.forename: M
authors.initials: M
authors.lastname: Anlauf
authors.forename: B
authors.initials: B
authors.lastname: Sipos
authors.forename: K
authors.initials: K
authors.lastname: Peters
authors.forename: J
authors.initials: J
authors.lastname: Lüttges
authors.forename: G
authors.initials: G
authors.lastname: Klöppel
mesh_terms: D006801:Humans; D010181:Pancreatic Cyst / Q000145:classification / Q000473:pathology* / Q000601:surgery; D010190:Pancreatic Neoplasms / Q000145:classification / Q000473:pathology* / Q000601:surgery