目的 探讨阑尾周围脓肿的CT影 像表现及诊断价值。方法 回顾性分析我 院2014年8月-2017年12月我院30例阑尾周 围脓肿患者临床资料，总结其CT表现特 征。结果 CT扫描显示，30例患者均可见 右下腹局限性混合密度肿块影，其中16例 肿块边缘较清楚，14例肿块边缘模糊，并 伴片状或斑片状高密度影，12例伴小肠胀 气，5例脓肿周围可见气体影，13例脓肿 周围可见钙化灶，14例存在盆腔积液，11 例脓肿周围可见压迫变性表现。CT增强扫 描可见脓肿壁呈环形强化，肿块呈不规则 外形，肿块内部密度均匀或欠均匀。所有 患者均经术后病理证实，CT对阑尾周围脓 肿诊断准确率为100%。结论 CT在周围脓 肿检查中有着重要诊断价值。

Objective To explore the CT imaging findings and diagnostic valueof periappendicular abscess. Methods The clinical data of 30 patients with periappendicular abscesswho were admitted to the hospital fromAugust 2014 to December 2017were retrospectively analyzed, and the CT findings were summarized. Results CT scan showed thattherewas limited mixed density shadow in the right lower quadrant of 30 patients. The tumor margins were clearerin16 casesand blurred in 14 cases, with flaky or patchy high density shadow. There were12 cases with small intestineflatulence, 5 cases with gas shadow around the abscess, 13 cases with calcification lesions around the abscess, 14 cases with pelvic effusionand 11 cases with compression degeneration. Enhanced CT scan showed that there wasring-shaped enhancementof abscess wall, and masses were irregular. There was homogeneousor less homogeneousdensity within masses. All patients were confirmed by postoperative pathology, and the accuracy CT of was 100% in the diagnosis of periappendicular abscess. Conclusion CT is of great valuein the diagnosisof periappendicular abscess.