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阑尾炎的CT诊断

 忘仔忘仔 2021-12-19




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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