膀胱非上皮性肿瘤的CT诊断  

CT Features in Non-Epithelial Tumor of Urinary Bladder

作　　者：黎蕾[1] 冯凯 邓银良 刘国保[1] 华余强[1] 童进 钟兴 

机构地区：[1]解放军184医院医学影像科,江西鹰潭335000

出　　处：《中国CT和MRI杂志》2017年第11期92-94,F0002,共4页Chinese Journal of CT and MRI

摘　　要：目的探讨膀胱非上皮性肿瘤的CT表现特点。方法回顾性分析经病理证实的8例膀胱非上皮性肿瘤的CT表现,结合文献分析膀胱非上皮性肿瘤的CT表现特征。结果平滑肌瘤3例,平扫表现为密度均匀的类圆形软组织肿块,边界清,增强扫描轻-中度强化。炎性肌纤维母细胞1例,平扫呈不均匀等、低密度影,内见坏死、分隔,边界欠清,增强扫描不均匀延迟性强化,邻近膀胱壁增厚、强化。副神经节细胞瘤2例,平扫表现为密度均匀的等或稍低密度影,边界清,增强扫描明显强化,1例内见强化血管影。神经内分泌癌2例,其中1例类癌表现为密度均匀的软组织肿块,边界清,以蒂状结构与膀胱壁相连,局部见斑点状钙化,增强扫描明显强化。另1例小细胞神经内分泌癌呈分叶状,密度不均匀,边界不清,增强扫描不均匀强化,累及邻近膀胱壁及周围脂肪间隙。结论膀胱非上皮性肿瘤的CT表现有一定的特征性,结合临床资料及影像学表现可以提高诊断准确率,但确诊仍依赖于病理学检查。ObjectiveTo describe the CT imaging features in non-epithelial tissue tumor of bladder. Methods T Findings of 8 cases with pathology proved non-epithelial tissue of the bladder were retrospectively analyzed and literatures were reviewed. Results Leiomyomas （3 cases）. They were oval soft tissue masses with homogeneous density and clear boundary on plain CT scan. They showed mild to moderate homogeneous enhancement after contrast administration. Inflammatory myofibroblastic tumor （1 case）. On Plain CT, It was heterogeneous hypo-/iso-density with necrosis and blurred boundary. Enhancement manifestations in dynamic contrast scan showed heterogeneous and delayed enhancement, with the adjacent wall of bladder was involved. Paragangliomas（2 cases）. They had homogeneous hypo-/iso-density, defined boundary and obvious enhancement with enhanced blood vessels in one of the tumor. Neuroendocrine carcinomas （2 cases） . Carcinoid, one of the cases, showed homogeneous and defined boundary soft tissue mass which was connect the wall of bladder with a pedicel-like structure and stippled calcification. Obvious enhancement after contrast administration could be assessed. Another case was small cell neuroendocrine carcinoma. It showed lobulated, heterogeneous and ill-defined mass. There was heterogeneous enhancement after contrast adnfinistration, accompanied with the adjacent wall of bladder and adipose tissue involved. Conclusion There were some CT characteristics about the non-epithelial tissue tumor of bladders. Improvement of diagnostic accuracy could be obtained as clinical data and imaging findings. However, the final diagnosis still relies on pathology.

关 键 词：膀胱 非上皮性肿瘤 体层摄影术 X线计算机 

分 类 号：R737.14[医药卫生—肿瘤] R445.3[医药卫生—临床医学]