腹腔纱布异物CT表现及误诊分析

CT characteristics of foreign body gauze in abdominal cavity and misdiagnosis analysis

目的总结腹腔纱布异物的CT表现特征,分析误诊原因。方法回顾性分析3例经手术病理学检查证实的腹腔纱布异物患者的CT检查结果及临床资料。结果腹腔纱布异物在CT平扫时早期因气体较多而表现为蜂窝状肿块,后期表现为软组织密度肿块,中心密度低于边缘,增强扫描均表现为包膜明显强化而内部无强化。结论腹腔纱布异物在CT增强检查中有一定的特征性表现,综合分析患者CT检查特征表现和临床手术史,能减少误诊的发生。

Objective To discuss the CT characteristics of foreign body gauze in abdominal cavity ,and analyze the reason for misdiagnosis .Methods The CT detection and clinical data of 3 cases ,which were diagnosed with for-eign body gauze in abdominal cavity by surgery and pathology ,were analyzed retrospectively .Results The foreign body gauze in abdominal cavity on CT scanning appeared as a cellular mass because of more air in early stage ,but a mass with density similar to that of the soft tissue in later stage .The center density was lower than the edge .CT en-hanced scans showed only the enhanced membrane but no enhancement of the center .Conclusion The foreign body gauze retained in abdominal cavity could possess some characteristic appearances on CT .Analysis of the characteris-tics carefully ,combined with surgery history ,could reduce the incidence of misdiagnosis .