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Role of endoscopic biopsies and morphologic features in predicting microsatelli...

Silva, João R.; Mascarenhas-Lemos, Luís; Neto do Nascimento, Catarina; Sousa Marques, Diogo; Wen, Xiaogang; Pinho, Lídia; Maio, Rui; Pontes, Patrícia

Evaluation of mismatch repair (MMR) protein and microsatellite instability (MSI) status plays a pivotal role in the management of gastric cancer (GC) patients. In this study, we aimed to evaluate the accuracy of gastric endoscopic biopsies (EBs) in predicting MMR/MSI status and to uncover histopathologic features associated with MSI. A multicentric series of 140 GCs was collected retrospectively, in which EB an...


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