Fig. 4

Pathological and immunohistochemical features of gastric nodules. a: HE staining, 4 × 10 magnification. Tumor tissue was composed of spindle cells, which were without pleomorphism. b: HE staining, 10 × 10 magnification. Lymphomatous cells were of medium size and they were similar to the splenic lymphoma cells in the vessels of the normal gastric tissue. c: HE staining, 40 × 10 magnification. Immunohistochemically, the tumor cells were positive for CD117