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溃疡性结肠炎是病因尚未明确的直肠和结肠慢性非特异性炎症性疾病。病变主要限于大肠粘膜与粘膜下层。以腹痛、腹泻、黏液脓血便、里急后重为主要临床表现,病程迁延不愈,可长达十
Ulcerative colitis is a chronic nonspecific inflammatory disease of the rectum and colon that has not been elucidated in etiology. Lesions mainly confined to the large intestine mucosa and submucosa. To abdominal pain, diarrhea, mucus pus and blood, tenesmus as the main clinical manifestations, disease duration unhealed, up to ten