volume 29, issue 12, P1575-1585 2016
DOI: 10.1038/modpathol.2016.124
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Michelle D Reid, Serdar Balci, Nobuyuki Ohike, Yue Xue, Grace E Kim, Takuma Tajiri, Bahar Memis, Ipek Coban, Anil Dolgun, Alyssa M Krasinskas, Olca Basturk, David A Kooby, Juan M Sarmiento, Shishir K Maithel et al.

Abstract: Histologic classification of ampullary carcinomas as intestinal versus pancreatobiliary is rapidly becoming a part of management algorithms, with immunohistochemical classification schemes also being devised using this classification scheme as their basis. However, data on the reproducibility and prognostic relevance of this classification system are limited. In this study, five observers independently evaluated 232 resected ampullary carcinomas with invasive component >3 mm. Overall interobserver agreement wa…

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