The morbidity of chronic non-specific ulcerative colitis is rising nowadays.
近年来，慢性非特异性溃疡性结肠炎发病情况呈上升趋势。
Chronic non-specific ulcerative colitis with intraepithelial neoplasia change is prone to turning to carcinoma, so it's called precancerosis of colonic carcinoma.
慢性非特异性溃疡性结肠炎伴上皮内瘤变由于其较易转化为癌组织所以被称为结肠癌前病变。
Background: Ulcerative colitis (UC) is a non-specific chronic inflammation of gut and its etiology has not been known clearly.
背景：溃疡性结肠炎(UC)是一种慢性非特异性肠道炎症性疾病，其病因尚不明确。
Background: Ulcerative colitis (UC) is a non-specific chronic inflammation of gut and its etiology has not been known clearly.
背景：溃疡性结肠炎(UC)是一种慢性非特异性肠道炎症性疾病，其病因尚不明确。
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