膀胱假肉瘤性肌纤维细胞增生(附3例报告及文献复习)  

Pseudosarcomatous myofibroblastic proliferation of the uninary bladder:imaging analysis and literature reviews

作　　者：胡若凡[1] 李顶夫[1] FENG Yu-xin WANG Ni 

机构地区：[1]深圳市第二人民医院放射科,广东518035 [2]Department of Radiology,the First Affiliated Hospital,Shenzhen University

出　　处：《放射学实践》2016年第4期373-376,共4页Radiologic Practice

摘　　要：目的：探讨膀胱假肉瘤性肌纤维母细胞增生的临床表现、病理、影像学特点。方法：回顾性分析3例经手术及病理证实的膀胱假肉瘤性肌纤维母细胞增生的临床、CT、MRI和病理学表现,并复习相关文献。结果：3例膀胱假肉瘤性肌纤维母细胞增生主体位于膀胱前壁或顶壁,CT及MRI表现为不均匀实性软组织肿块,突向膀胱腔内,局部膀胱壁增厚,膀胱外周脂肪结构浑浊,增强扫描呈不均匀较明显强化,有延迟强化。3例患者均行膀胱部分切除,术后随访2~4年均未发现复发。结论：膀胱假肉瘤性肌纤维母细胞增生是一种良性病变,但易误为膀胱恶性肿瘤,CT及MRI检查对两者的诊断及鉴别诊断有一定价值。Objective：To investigate the clinical manifestations,pathological and imaging features of pseudosarcomatous myofibroblastic proliferation（PMP）of uninary bladder.Methods：Clinical manifestations,pathological and imaging features of three patients with pathologically proved PMP were retrospectively analyzed and related literatures were reviewed.Results：The lesions of all three cases were located in the anterior wall or top wall of the bladder,and presented as heterogeneous solid mass protruding toward lumen,with localized thickening bladder wall and blurred fat spaces outside the bladder,obviously heterogeneous enhancement and delayed enhancement On CT and MRI.Three patients were followed up for 2~4years after partial cystectomy and no recurrence was found.Conclusion：Pseudosarcomatous myofibroblastic proliferation is a rare type of benign lesions arised from bladder and often misdiagnosed as a malignant neoplasm,clinically,CT and MRI are of great value in the diagnosis and differential diagnosis of PMP.

关 键 词：膀胱肿瘤 假肉瘤性肌纤维母细胞增生 磁共振成像 体层摄影术 X线计算机 鉴别诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学] R737.14[医药卫生—诊断学]