骨外尤因肉瘤的影像学表现  

Imaging Features of Extraskeletal Ewing Sarcoma

作　　者：史凤霞[1] 刘宇[2] 刘鹏[1] 谭显政[1] 范立新[1] SHI Fengxia;LIU Yu;LIU Peng;TAN Xianzheng;FAN Lixin(Department of Radiology,the People’s Hospital of Hunan Province,Changsha 410005,China)

机构地区：[1]湖南省人民医院放射科,湖南长沙410005 [2]湖南省人民医院病理科,湖南长沙410005

出　　处：《中国医学影像学杂志》2024年第6期599-603,共5页Chinese Journal of Medical Imaging

基　　金：湖南省卫生健康高层次人才-青年骨干人才(20230508-1034)。

摘　　要：目的 探讨骨外尤因肉瘤(EES)的影像学表现和临床病理特征。资料与方法 回顾性分析2014年1月—2023年1月湖南省人民医院经手术病理证实的14例EES的临床、影像学资料及病理特征,其中7例行CT检查(增强5例),9例行MRI检查(增强8例)。结果 病灶位于脊柱旁3例,右咽旁间隙1例,纵隔1例,左大腿1例,左耻骨旁软组织1例,腹膜后1例,盆腔1例,前列腺2例,左肾1例,胰腺1例,肝脏1例。14例EES均表现为单发实性肿块,13例呈团块状,病灶最大径线48.0~180.0 mm。8例密度或信号不均匀,8例可见囊变坏死,1例钙化。增强后8例呈不均匀强化,12例呈重度或中重度强化。10例形态不规则,11例有周围器官或组织侵犯,3例无周围器官和组织结构侵犯,5例合并周围骨质破坏,1例合并左肾静脉和下腔静脉癌栓和血栓、髂静脉血栓。结论 EES临床症状无特异性,影像上多表现为骨外软组织内体积巨大的实性肿块,密度或信号多不均匀,形态不规则,常伴囊变、坏死并侵犯周围器官或组织,影像学对术前诊断、临床分期、治疗及疗效评估具有重要价值。Purpose To explore the imaging features and clinical pathology characteristics of extraskeletal Ewing sarcoma(EES).Materials and Methods The clinical and imaging data and pathological findings of 14 patients with EES confirmed by operation and pathology were retrospectively analyzed.CT examination was performed in 7 cases(including 5 enhanced)and MRI was performed on 9 cases(including 8 enhanced).Results The anatomic locations of the 14 patients included paraspinal area(n=3),mediastinum(n=1),right supraclavicular(n=1),left thigh(n=1),left parapubic region(n=1),retroperitoneal(n=1),pelvic cavity(n=1),prostate(n=2),left kidney(n=1),pancreas(n=1)and liver(n=1).All 14 cases of EES showed single solid mass,13 cases were lumpy,and the maximum diameter of the lesion ranged from 48.0 mm to 180.0 mm.8 cases showed uneven density or signal,cystic degeneration and necrosis was seen.one case had calcification.After enhancement,8 cases showed uneven enhancement,12 cases showed severe or moderate enhancement.10 cases were irregular in shape,11 cases had peripheral organ or tissue invasion,3 cases had no peripheral organ or tissue invasion.5 cases had peripheral bone destruction.One case had left renal vein and inferior vena cava tumor thrombus and thrombus,iliac vein thrombus.Conclusion The clinical symptoms of EES are nonspecific.The imaging manifestations of EES are mostly massive solid masses in extraosseous soft tissue,with uneven density or signal,irregular shape,often accompanied by cystic degeneration and necrosis and invasion of surrounding organs or tissues.Imaging is of great value in preoperative diagnosis,clinical staging,treatment and efficacy evaluation.

关 键 词：尤因肉瘤 磁共振成像 体层摄影术 X线计算机 病理学 

分 类 号：R738.1[医药卫生—肿瘤] R445.2[医药卫生—临床医学]