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摘要目的研究结肠近端腺瘤样瘤术前CT结肠成像无异常而术后发展为闭锁性结肠癌的发生率。材料与方法本研究经机构审查委员会批准并免除知情同意。本观察性研究
Abstract Objective To study the incidence of colorectal cancer in colon proximal colon adenoma without preoperative CT colonography. Materials and Methods The study was approved by the institutional review board and exempted from informed consent. This observational study