肠黏膜表面显示有早期坏死，从黏膜向黏膜下层和血管壁肌层都有充血。然而，黏膜下层和肌层仍然保持完整。
The mucosal surface of the bowel seen here shows early necrosis with hyperemia extending all the way from mucosa to submucosal and muscular wall vessels. The submucosa and muscularis, however, are still intact.
