Large duct type invasive adenocarcinoma of the pancreas with microcystic and papillary patterns: a potential microscopic mimic of non-invasive ductal neoplasia.

Abstract excerpt

A morphological variant of pancreatic ductal adenocarcinoma forming large ductal elements, large duct type ductal adenocarcinoma, is documented and its clinicopathological features are studied. These tumors may have microcystic and papillary growth patterns that closely mimic the non-invasive cystic and papillary pancreatic tumors such as: intraductal papillary-mucinous neoplasia, including the oncocytic variant,...

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