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目的 探讨无典型临床表现阑尾炎的ＣＴ诊断价值。方法 搜集临床首次诊断未考虑为阑尾炎，手术和病理证实为阑尾炎者２０ 例，回顾性分析其ＣＴ表现特点。结果 ＣＴ表现有：（１）７ 例表现为阑尾增粗、壁增厚并有明显强化，其中４ 例阑尾内见结石。（２） 盲肠和（ 或） 周围炎１４ 例。（３）右下腹局限性脓肿１１ 例，其中２ 例伴斑点钙化。ＣＴ误诊为回盲部及升结肠肿瘤２ 例，盆腔炎２ 例。结论 症状和体征不典型的阑尾炎临床诊断困难，常误诊，绝大多数病例根据其ＣＴ表现可获得正确诊断。
Objective To investigate the value of CT in the diagnosis of appendicitis without typical clinical manifestations. Methods The first clinical diagnosis of appendicitis was not considered in 20 cases, appendicitis was confirmed by surgery and pathology in 20 cases. The CT features were retrospectively analyzed. Results CT findings: (1) 7 cases showed appendiceal thickening, thickening and significant enhancement, of which 4 cases of appendix see stones. (2) cecum and (or) inflammation in 14 cases. (3) 11 cases of limited right abdomen abscess, including 2 cases with plaque calcification. CT misdiagnosed as ileocecal and ascending colon tumors in 2 cases, pelvic inflammatory disease in 2 cases. Conclusions The appendicitis with atypical symptoms and signs is difficult to diagnose and often misdiagnosed. The vast majority of cases are correctly diagnosed based on their CT findings.