Imaging Features of Extraskeletal Ewing Sarcoma
10.3969/j.issn.1005-5185.2024.06.014
- VernacularTitle:骨外尤因肉瘤的影像学表现
- Author:
Fengxia SHI
1
;
Yu LIU
;
Peng LIU
;
Xianzheng TAN
;
Lixin FAN
Author Information
1. 湖南省人民医院放射科,湖南 长沙 410005
- Keywords:
Ewing sarcoma;
Magnetic resonance imaging;
Tomography,X-ray computed;
Pathology
- From:
Chinese Journal of Medical Imaging
2024;32(6):599-603
- CountryChina
- Language:Chinese
-
Abstract:
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.
