软组织透明细胞肉瘤影像学特征分析  

Imaging features of clear cell sarcoma of soft tissue

作　　者：李韵昕 周竹萍 王爱杰[1] 黄冉冉 张国伟[1] 苏永彬 LI Yun-xin;ZHOU Zhu-ping;WANG Ai-jie;HUANG Ran-ran;ZHANG Guo-wei;SU Yong-bin(Department of Radiology,Yantaishan Hospital,Yantai,Shandong,264003,China;不详)

机构地区：[1]烟台市烟台山医院影像科,山东省264003 [2]北京和睦家医院影像科,100015 [3]首都医科大学附属北京积水潭医院放射科,北京100035

出　　处：《中国骨与关节杂志》2024年第8期601-605,共5页Chinese Journal of Bone and Joint

摘　　要：目的分析软组织透明细胞肉瘤(clear cell sarcoma of soft tissue,CCS)影像学特征,提高对该病的认识和诊断水平。方法回顾分析2014年1月至2023年6月经手术病理证实的14例CCS的CT、MRI影像学资料并复习相关文献,分析其影像学特点。结果肿瘤分布:四肢关节旁软组织(12/14)、髂骨旁软组织(1/14)、颈部软组织(1/14)。9例接受MRI平扫和增强检查:T_(1)WI图像上,肿瘤呈稍高信号(5/9),混杂高信号(4/9);T_(2)WI图像上,肿瘤呈高信号(2/9)、混杂高信号(7/9),其中6例内有线条样低信号;均为明显不均匀强化。12例接受CT平扫和增强检查:呈软组织密度影、边界不清(9/12)、骨质破坏(6/12)、中度不均匀强化(6/12)或明显不均匀强化(5/12)。结论肌肉骨骼系统CCS多见于四肢关节旁软组织。MRI上T_(1)WI多呈稍高信号、T_(2)WI呈混杂高信号,其内可有线条样低信号;大多明显不均匀强化。CT上呈软组织密度影,边界不清。Objective To analyze the imaging features of clear cell sarcoma of soft tissue(CCS)to improve the understanding and diagnosis of it.Methods CT and MRI imaging data of 14 patients with CCS confrmed by surgical pathology from January 2014 to June 2023 were retrospectively analyzed,and relevant literature was reviewed to analyze the imaging characteristics.Results The tumor distribution was as follows:soft tissue around the joints of the limbs(12/14),soft tissue around the ilium(1/14),and soft tissue around the neck(1/14).9 cases received MRI plain scan and enhanced examination:T_(1)WI images showed slightly high signal(5/9),mixed high signal(4/9);On T_(2)WI images,the tumors showed high signal(2/9)and mixed high signal(7/9),including 6 cases with linear low signal.All of them were obviously heterogeneous reinforcement.12 cases underwent CT plain scan and enhanced scan:soft tissue density shadow,boundary ambiguity(9/12),bone destruction(6/12),moderate uneven enhancement(6/12)or obvious uneven enhancement(5/12).Conclusions CCS of musculoskeletal system is more common in the soft tissues of limbs.On MRI,T_(1)WI shows slightly high signal,T_(2)WI shows mixed high signal,and there may be linear low signal.Most of them are signifcantly uneven reinforcement.CT shows a soft tissue density shadow with indistinct boundary.

关 键 词：肉瘤 透明细胞 软组织肿瘤 磁共振成像 体层摄影术 X线计算机 

分 类 号：R738.6[医药卫生—肿瘤]