Pancreatic intraductal neoplasms-intraductal papillary mucinous neoplasm and intraductal tubulopapillary neoplasm

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  • 膵管内腫瘍―IPMN，ITPN―

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<p>Based on current classification systems, intraductal neoplasms of the pancreas are classified into two categories, intraductal papillary mucinous neoplasms (IPMN) and intraductal tubulopapillary neoplasms (ITPN). IPMNs are mucin-hypersecreting neoplasms with various degrees of dysplasia from low grade to high grade. IPMNs are further subdivided into four subtypes: gastric type, intestinal type, pancreatobiliary type and oncocytic type, based on their morphological and immunohistochemical features. ITPNs are non-mucinous tumors with uniform high-grade neoplastic cells which lack a low-grade component. To differentiate these two neoplasms, it is important to correctly recognize their characteristics including macroscopic, microscopic, immunohistochemical and molecular findings.</p>

Journal

  • Suizo

    Suizo 35 (4), 250-257, 2020-08-31

    Japan Pancreas Society

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