Fig. 2

Histological findings of the tumor. a Loupe view of the tumor. Hematoxylin and eosin staining (H&E). The EBV-positive and -negative components are outlined by solid and dotted curves, respectively. b A high-power view of the EBV-positive part of the tumor, marked with boxed area in a. Poorly differentiated adenocarcinoma with dense lymphocytic infiltration, gastric carcinoma with lymphoid stroma was seen (H&E, ×200). c A high-power view of the EBV-negative part of the tumor, marked with boxed area in a. Poorly differentiated adenocarcinoma without prominent lymphocytic infiltration was seen (H&E, ×200). d A low-power view of the border between the two histopathological components marked with boxed area in a. The two components were clearly separated from each other (H&E, ×100)