四肢神经鞘瘤脂肪分离征和神经出入征的观察分析  

Nerve sheath tumor of extremities:analysis of split-fat sign and entering and exiting nerve sign

作　　者：江茜 王加伟[1] 许锦[2] 徐雷鸣 Jiang Qian;Wang Jiaivei;Xu Jin;Xu Leiming(Department of Radiology,the Second Hospital of Zhejiang University School of Medicine,Hangzhou 310009,China;Department of Radiology,Zhuji People's Hospitnl,Zhuji 311800,China;Department of Radiology,Chinese Medicine Hospital of Shaoxing,Shaoxing 312000,China)

机构地区：[1]浙江大学医学院附属第二医院放射科,杭州310009 [2]诸暨市人民医院放射科,311800 [3]绍兴市中医院放射科,312000

出　　处：《中华放射学杂志》2020年第1期33-36,共4页Chinese Journal of Radiology

摘　　要：目的探讨四肢软组织神经鞘瘤MRI脂肪分离征和神经出入征的关系。方法回顾性分析2014年1月至2018年7月,浙江大学医学院附属第二医院141例经手术、病理证实的四肢软组织神经鞘瘤患者的MRI资料。根据手术所见肿瘤位置,将患者分为肌内、肌间组,对两组神经鞘瘤的脂肪分离征和神经出入征进行对照分析,并以χ2检验比较两组间两种征象的分布情况。结果141例患者共有152个病灶:肌内神经鞘瘤41个,肌间神经鞘瘤111个。肌内神经鞘瘤出现脂肪分离征48处、神经出入征14处,肌间神经鞘瘤出现脂肪分离征9处、神经出入征190处。统计结果显示,两组病灶的脂肪分离征(χ2=55.545,P<0.001)、神经出入征(χ2=26.969,P<0.001)差异均有统计学意义。结论脂肪分离征多出现在肌内神经鞘瘤,神经出入征多出现在肌间神经鞘瘤。Objective To explore the relationship between split-fat sign and entering and exiting nerve sign on MRI in nerve sheath tumors(NSTs)of extremities.Methods The MRI data of 141 patients with benign soft tissue NSTs of extremities confirmed by operation and pathology from January 2014 to July 2018 in the Second Hospital of Zhejiang University School of Medicine were retrospectively analyzed.The patients were divided into intramuscular and intermuscular groups according to the location of the tumors.The split-fat sign and entering and exiting nerve sign in the two groups were compared usingχ2 test.Results There were 152 NSTs in 141 patients,including 41 intramuscular NSTs and 111 intermuscular NSTs.There were 48 split-fat sign and 14 entering and exiting nerve sign in intramuscular NSTs,while 9 split-fat sign and 190 entering and exiting nerve sign in intermuscular NSTs.Statistical analysis showed that there were statistically significant differences in split-fat sign(χ2=55.545,P<0.001)and entering and exiting nerve sign(χ2=26.969,P<0.001)between the two groups.Conclusion The split-fat sign mostly appeared in intramuscular NSTs,and the entering and exiting nerve sign mostly appeared in intermuscular NSTs.

关 键 词：神经鞘瘤 磁共振成像 脂肪分离征 神经出入征 

分 类 号：R73[医药卫生—肿瘤]