Rare primary gastric peripheral T-cell lymphoma not otherwise specified: A case report

Figure 1 Histopathological findings. A: Hematoxylin and eosin staining of stomach of magnification of 400 ×; B-D: Results of immunohistochemistry revealing the tumor was CD3 positive, Ki-67 positive, and PAX positive (magnification 100 ×).

Figure 2 Endoscopic finding. A huge irregular ulcerative lesion in the gastric cardia.

Figure 3 Underwent imaging. A and B: Positron emission tomography showed hypermetabolic mass located in the lower body; C: Computed tomography showed diffuse wall thickening of the posterior lesser curvature of the gastric body with metastatic nodes.