Unusual gastric tumors and tumor-like lesions: Radiological with pathological correlation and literature review

Figure 7 Diffuse large B-cell lymphoma. A 63-year-old woman presented with epigastralgia. A and B: Contrast-enhanced computed tomography (CT) scan showing diffuse, homogeneous gastric wall thickening with a smooth well-defined outer wall (arrow). An 83-year-old woman presented with tarry stool and constipation for a week; C and D: Post-contrast-enhanced CT revealing wall thickness (arrow) at the gastric body and several enlarged lymph nodes in the mesentery and para-aortic retroperitoneum (stars); E: Low-power photomicrograph (original magnification, × 20; HE stain) showing diffuse proliferation of large monomorphic neoplastic cells with abundant cytoplasms; F: The neoplastic cells occupy the full thickness of the submucosa (star).