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目的探讨肝外泡状棘球蚴病(AE)的CT诊断及鉴别诊断。资料与方法回顾性分析31例经手术或活检病理证实的肝外AE的CT表现。结果肺AE 24例,CT表现为以肺野外带和肺底分布为主的单发或多发肿块结节,内见钙化灶、小空泡征或空洞;脑AE 17例,平扫呈均质实性肿块或实性肿块伴多发囊泡,增强扫描呈靶样环状强化,6例病灶周围显示小囊泡征;骨AE 4例,CT表现为溶骨性骨质破坏,内见结节样或小圈状钙化灶,病变突破骨皮质后形成软组织肿块;肾上腺AE 14例,CT表现为混杂密度肿块内多发的结节样钙化灶或小囊泡征;肾AE 2例;累及腹膜后和背部软组织AE 4例。结论CT检查能够明确AE肝外转移部位和侵犯范围,其表现有一定特征,结合流行病史有助于诊断。
Objective To investigate the CT diagnosis and differential diagnosis of extrahepatic alveolar hydatid disease (AE). Materials and Methods Retrospective analysis of 31 cases of extrahepatic AE confirmed by surgery or biopsy. Results Twenty-four cases of lung AE showed single or multiple mass nodules, mainly in the field of lung and the bottom of the lung, with calcification, small vacuole sign or cavity. Brain AE was homogeneous in 17 cases Solid mass or solid mass with multiple vesicles, enhancement scan was ring-like enhancement, 6 cases showed lesions around the small vesicle sign; bone AE 4 cases, CT showed osteolytic bone destruction, see the nodules Like or a small circle of calcification, the lesions broke through the cortex after the formation of soft tissue mass; adrenal AE in 14 cases, CT showed heterogeneous mass in the mass of multiple nodular calcification or small vesicle sign; 2 cases of renal AEs; involving retroperitoneal And back soft tissue AE 4 cases. Conclusion CT examination can clearly AE extrahepatic metastasis site and extent of violations, the performance of a certain characteristics, combined with the history of epidemics contribute to the diagnosis.