来源：华夏影像诊断中心
急性阑尾炎是临床常见的急腹症，青少年多见，男性发病较女性高
临床表现：转移性右下腹痛，持续加重典型体征：麦氏点压痛，反跳痛，腹肌紧张，肠鸣音减弱或消失
实验室检查：白细胞计数及中性粒细胞升高
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典型的临床表现和实验室检查即可确诊但约20-30%的患者缺乏典型的临床表现、体征及实验室检查阑尾位置多变，易与其它急腹症混淆
Tips
有助于急性阑尾炎患者术前评估：阑尾的位置、有无脓肿形成减少假阳性率
CT对阑尾炎诊断具有较大价值
CT表现：直接征象：阑尾增粗，壁增厚，粪石，脓肿或肿块
间接征象：周围脂肪间隙模糊，密度增高，邻近肠壁增厚，周围渗液或游离气体
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