韧带样瘤MRI表现与病理组织分析  

MRI manifestations and pathological analysis of desmoid tumor

作　　者：袁莉莉[1] 许传军[1] 

机构地区：[1]东南大学附属第二医院放射科,江苏南京210003

出　　处：《生物医学工程与临床》2015年第5期480-484,共5页Biomedical Engineering and Clinical Medicine

摘　　要：目的 回顾性分析韧带样瘤的影像表现和病理学特征，提高对该病的术前诊断符合率。方法 选择2011年1月至2015年1月在东南大学附属第二医院9例病理诊断为韧带样瘤患者，其中女性6例，男性3例；年龄31 ～ 34岁，中位年龄35岁。行CT、MRI常规T1加权成像（T1WI）、T2加权成像（T2WI）、短时间反转恢复（STIR）序列扫描。手术后取病灶组织进行病理组织检查，分析影像学表现及病理学特征。结果 CT表现为局部软组织肿块，边界不清，密度欠均。MRI图像，呈等T1稍长或等T2信号，压脂像呈高信号，部分内见条片状低信号，坏死囊变少见，增强扫描均有明显不均匀强化，上述病例未见转移征象。结论 韧带样瘤的影像学表现中，MRI表现较具有特征，在T1WI及T2WI可见条状低信号，部分病灶呈爪状，侵袭性生长，掌握其影像特征，可以提高该病的诊断符合率。Objective To retrospective analyze the imaging manifestation and pathological features of desmoid tumor, and improve the preoperative diagnosis rate. Methods A total of 9 cases with pathologically proved desmoid tumor from January2011 to January 2015 were enrolled, which included 6 females and 3 males, aged 31- 34 years old with median age of 35 years old. All of them were performed CT, MRI conventional T1 weighted imaging（T1WI）, T2 weighted imaging（T2WI）, short time inversion recovery（STIR） sequences scan. The clinical data, imaging findings and pathological features were analyzed and the characteristics were summarized. Results CT showed the local soft tissue mass with unclearly boundary and uneven density. MRI showed slight longer T1 or T2signal; The fat saturation showed high signal and internal showed low strip and flakes signal; cystic necrosis was rare; enhanced scan showed obvious heterogeneous enhancement; there was no metastasis in 9 cases. Conclusion It is demonstrated that in the desmoid tumor images, MRI is exists strip low signal of tumor lesions in T1 WI and T2 WI, which could be improved the diagnostic accordance rate of the disease.

关 键 词：韧带样瘤 CT MRI 病理学诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学] R73[医药卫生—诊断学]