显微镜下，溃疡边界清楚，左边正常的胃黏膜脱落形成一个深的溃疡，其基底部有炎症和坏死碎片。溃疡底部动脉分支被破坏出血。
Microscopically, the ulcer here is sharply demarcated, with normal gastric mucosa on the left falling away into a deep ulcer whose base contains infamed, necrotic debris. An arterial branch at the ulcer base is eroded and bleeding.
