Accuracy of dual-contrast gastrointestinal ultrasonography in predicting lymph node metastasis in older adults with gastric cancer

Figure 2 Ultrasonographic findings in gastric cancer. A: The gastric wall layers are clearly defined, with circumferential thickening of the gastric wall in the antral and body regions, more pronounced in the antrum, narrowing of the antral lumen, an uneven mucosal surface, and partial interruption of the mucosa can be observed; B: Enlargement of the perigastric lymph nodes.