摘要
目的探讨眼眶肌锥外间隙病变MR影像特征及鉴别诊断。方法回顾分析67例经手术病理证实的眼眶肌锥外病变MR表现。结果眼眶肌锥外病灶共76个,左眼27例、右眼31例、双眼9例,其中淋巴增生性疾病24例,22例表现为沿眼眶结构铸型生长T1WI等信号肿块,T2WI等或稍高信号肿块,2例表现等T1等T2信号软组织肿块;9例炎性病变表现等T1等T2、稍高或稍低信号肿块;癌性病变3例表现为稍长T1稍短T2或稍长T1稍长T2信号肿块;脉管源性肿瘤5例表现为稍长T1长T2信号肿块;良性实性及囊实性肿块16例,大多表现为稍长T1稍短T2或混杂T2信号肿块,囊性肿块4例表现为长T1长T2信号,6例表现为短T1长T2信号,而其中4例皮样囊肿可见特征性抑脂后信号减低。结论 MR能清晰显示眼眶肌锥外间隙病变的影像学特征,对于眼眶肌锥外占位性病变的诊断、鉴别诊断和术前精确定位具有重要价值。
Objective To explore the MR imaging characteristics and the clinical application value of lesions of orbits tumors in extraconal compartment. MethodsAnalyzed the MR imaging characteristics of 67 patients with orbits tumors in extraconal compartment retrospectively, all of them were confirmed by surgical pathology. ResultsTotally find out 78 lesions in orbital extraconal compartment, 27 cases in left eye and 31 cases in right eye, 9 case in bilateral. Lymphoproliferative diseases account for 24 cases, 22 of them growing along with the orbital structure and showed isointensity on T1 WI and isointensity or hyperintensity on T2 WI, and 2 cases showed isointensity on T1 WI and T2 WI. A total of 9 cases were inflammatory disease, and showed isointensity on T1 WI and hypointensity or hyperintensity on T2 WI. Three cases were cancer, and showed slight hypointensity on T1 WI,slight hyperintensity on T2 WI. Vascular tumor account for 5 cases, which showed hypointensity on T1 WI and hyperintensity on T2 WI. Benign tumor were 16 cases, which showed hypointensity on T1 WI and hyperintensity on T2 WI, 4 cases were cystic mass, showed hypointensity on T1 WI and hyperintensity on T2 WI, 6 cases showed hyperintensity on T1 WI and T2 WI, however 4 cases dermoid cyst showed characteristic signal decrease after fat suppression on T1 WI and T2 WI. Conclusion MR imaging can clearly show the characteristic of orbital tumors in extraconal compartment, and it's an important method in the differentiation, diagnosis and preoperative localization for orbital tumors in extraconal compartment.
出处
《中国CT和MRI杂志》
2015年第8期1-4,共4页
Chinese Journal of CT and MRI
关键词
眼眶病变
肌锥外间隙
MRI影像特征
Orbital Disease
Extraconal Orbital Compartment
MRI Characteristic