慢性溃疡性结肠炎（低倍镜）

显微镜，溃疡性结肠炎最初限制在黏膜，溃疡破坏局部粘膜同时逐渐破坏周围粘膜。
Microscopically, the inflammation of ulcerative colitis is confined primarily to the mucosa. Here, the mucosa is eroded by an ulcer that undermines surrounding mucosa.