腱鞘纤维瘤的MRI表现及文献复习  

MRI manifestation and literature review of tendon sheath fibroma

作　　者：梁立锋 LIANG Lifeng(Department of Radiology,Affiliated Hospital of Nanjing University of Traditional Chinese Medicine,Nanjing 210004,CHN)

机构地区：[1]南京中医药大学附属医院放射科,南京210004

出　　处：《河南大学学报（医学版）》2024年第5期354-357,共4页Journal of Henan University:Medical Science

摘　　要：目的:探讨并总结腱鞘纤维瘤的MRI表现及已发表的病例,以提高对此病的认识。方法:对7例经手术、病理证实的FTS进行回顾性分析,总结其MRI表现特点。对以往已发表文献中病例的临床特点、影像学和组织病理学表现进行复习。结果:7例FTS中,6例位于四肢小关节(手部3例,足部3例),1例位于肱骨。患者平均年龄35.5岁(范围14~57岁),其中男性较多.常见的症状为缓慢生长的无痛性肿块和局限性关节活动度受限。所有病灶为单发软组织信号肿块,在T1WI呈等信号,在T2WI上呈低、等或高信号,可压迫邻近骨质。镜下病变呈分叶状,大量稠密的胶原间质中散在纤维母细胞、纺锤样细胞、裂隙状血管腔隙,术后无复发及恶变。结论:肿瘤通常表现为邻近腱鞘的局灶性结节性肿块,1WI等、低信号,T2WI显示多种模式,但相对于肌肉多为低信号,增强强化多样,从无强化到明显强化。Objective:Discuss and summarize the MRI findings and published cases of tenosheath fibroma,so as to improve the understanding of this disease.Methods:Seven cases of FTS confirmed by surgery and pathology were retrospectively analyzed,and summarize the MRI features.The clinical features,imaging and histopathological findings of the previously published cases were reviewed.Results:Among the 7 cases of FTS,6 cases were located in the small segment of limbs(3 cases in the hand and 3 cases in the foot),and 1 case was located in the humerus.The mean age of the patients was 35.5 years(range,14 to 57 years),and more of them were men.About 10%of patients had a history of trauma.The common symptoms are a slow growing painless mass and limited range of motion.All lesions were single soft tissue signal masses,isointense on MR T1WI and low,isointense or hyperintense on T2WI,which could compress adjacent bone.Microscopically,the lesion was lobulated,with a large number of dense collagen interstitium scattered in fibroblasts,spindle-like cells,and slit-like vascular Spaces.There was no recurrence or malignant change after operation.Conclusion:The tumor usually presents as a focal nodular mass adjacent to the tendon sheath.MRI T1-weighted isointensity,hypointensity,T2-weighted showed a variety of patterns,but more hypointensity than muscle,enhancement varied from no enhancement to obvious enhancement.

关 键 词：腱鞘纤维瘤 磁共振成像 文献复习 

分 类 号：R445.2[医药卫生—影像医学与核医学]