结肠镜可以发现并移除癌变前的增生组织。
A colonoscopy can find and remove growths before they become cancerous.
结肠癌：检测可以发现可移除的癌前息肉——在结肠癌变之前即发现。
Colon cancer: Testing can find precancerous polyps that can be removed - catching colon cancer before it starts.
新近研究显示，这一簇miRNA的异常表达可防止癌变前细胞死亡，并令它们增殖成肿瘤。
Recent research has shown that aberrant versions of this cluster are involved in preventing pre-cancerous cells from dying and allowing them to proliferate into tumors.
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