腹膜后纤维化PET/CT影像学表现并文献复习(附2例报告)  

Imaging manifestation of retroperitoneal fibrosis in PET/CT and literature review

作　　者：艾书跃[1] 吴建伟[1] 吕毛古[1] 杨军[1] 袁梅[1] 徐煊[1] 尹荣荣[1] 

机构地区：[1]解放军81医院医学影像科,江苏南京210002

出　　处：《东南国防医药》2010年第5期420-423,共4页Military Medical Journal of Southeast China

摘　　要：目的分析腹膜后纤维化(RPF)的PET/CT表现,提高对RPF的认识。方法回顾性分析2例腹膜后纤维化患者PET/CT影像表现;综合分析其B超、CT、MR等影像学检查结果,并结合文献资料进行复习。结果 2例RPFCT表现均为腹膜后血管间隙显示不清,腹膜后弥漫性斑块或肿块及腹膜后脏器受累;且伴肾盂及输尿管扩张积水;PET表现为腹膜后血管周围及输尿管区均匀或欠均匀性小片状18F-脱氧葡萄糖(18F-FDG)摄取。良性RPF的18F-FDG摄取标准放射性摄取最大值(SUVmax)多低于2.5,延迟扫描SUVmax持平或下降,明显低于恶性肿瘤腹膜后淋巴结转移18F-FDG摄取;恶性RPF的18F-FDG摄取明显不均,SUVmax多高于2.5,延迟SUVmax后上升。结论通过结合文献对比RPF各种影像学表现,PET/CT可认为是诊断RPF最有价值的影像诊断方法之一,有利于良恶性RPF和腹膜后淋巴结肿大鉴别,同时有利于查找继发性RPF的原发病因。Objective To investigate the value of PET/CT applied in diagnosis of retroperitoneal fibrosis（RPF）,and to improve the recognition of RPF.Methods Retrospective analysis was performed on the imaging manifestation of 2 RPF patients.The data of B Ultrasonography,CT,and MR imaging examination of RPF were comprehensively analyzed and literatures were reviewed.Results CT Imaging manifestations of RPF including diffuse plaque or mass,involvement of retroperitoneal organs,most accompanied by hydronephrosis and dilatation of the ureters were shown.PET imaging manifestations of RPF including uniformity or nonuniform uptake of 18F-FDG as diffuse plaque or mass were shown.The uptake of 18F-FDG innocuousness RPF was uniformity and SUVmax was most lower than 2.5,the delay SUVmax was lower than initial SUVmax;the uptake of 18F-FDG malignant RPF was uniformity and SUVmax was most higher than 2.5.the delay SUVmax was higher than initial SUVmax.Conclusion PET/CT was one of the best valuable examinations through comprehensive analysis of various imaging manifestation of RPF and literature review.It is helpful to distinguish innocuousness or malignant RPF and lymphadenectasis,and to find the primary disease of RPF.

关 键 词：腹膜后纤维化 诊断 PET/CT 

分 类 号：R656.5[医药卫生—外科学]