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。
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.
结肠淋巴瘤主要是沿黏膜下层向深层浸润，可引起显著的肠壁增厚，而肠腔狭窄常不明显。
The colon lymphoma mainly infiltrate the submucosa and deeper layers and may cause prominent colonic wall thickening, but lumen stenosis is not obvious.
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