Predictable factors of histologic discrepancy of gastric cancer between the endoscopic forceps biopsy and endoscopic treatment specimen.

Background/aims: Recently, variable gastrointestinal track tumors including early stage malignancies are treated by endoscopic procedure. However, the discrepancy of histologic diagnosis may sometimes exist between the pretreatment forceps biopsy results and those of post treatment specimen. So the prediction of malignant lesion is important in the aspect of treatment selection.