CAJ | 학술논문

目的：探讨外周神经源性肿瘤的磁共振表现，旨在提高对该类疾病的影像学诊断水平。方法：回顾性分析经手术病理证实的外周神经源性肿瘤21例，其中神经纤维瘤14例，神经鞘瘤6例，恶性蝾螈瘤1例。所有神经源性肿瘤患者行 MRI 扫描。结果：4例神经纤维瘤表现为“葡萄藤”状，10例神经纤维瘤为分叶状，6例神经鞘瘤表现为梭形或类圆形肿块，恶性蝾螈瘤为团块状。神经纤维瘤 MR 均表现为 T1 WI 等信号，T2 WI 以高信号为主，其中夹杂低信号分隔；神经鞘瘤 T1 WI 呈稍低信号，T2 WI 表现为低信号周边环绕高信号即“靶征”；恶性蝾螈瘤在 T2 WI 上表现为高信号，其内可见环形或线样低信号分隔影。结论：外周神经源性肿瘤发生的部位、形状、大小以及信号特点均对其 MRI 诊断有帮助。
목적：탐토외주신경원성종류적자공진표현，지재제고대해류질병적영상학진단수평。방법：회고성분석경수술병리증실적외주신경원성종류21례，기중신경섬유류14례，신경초류6례，악성영원류1례。소유신경원성종류환자행 MRI 소묘。결과：4례신경섬유류표현위“포도등”상，10례신경섬유류위분협상，6례신경초류표현위사형혹류원형종괴，악성영원류위단괴상。신경섬유류 MR 균표현위 T1 WI 등신호，T2 WI 이고신호위주，기중협잡저신호분격；신경초류 T1 WI 정초저신호，T2 WI 표현위저신호주변배요고신호즉“파정”；악성영원류재 T2 WI 상표현위고신호，기내가견배형혹선양저신호분격영。결론：외주신경원성종류발생적부위、형상、대소이급신호특점균대기 MRI 진단유방조。
Objective:To evaluate the MR imaging manifestations of peripheral neurogenic tumor,in order to improve the standard of diagnosis.Methods:MR imaging features of 21 patients with surgery and pathology proven peripheral neuro-genic tumor were retrospectively analyzed,there were 14 neurofibromas,six schwannomas and one malignant triton tumor. All patients underwent MRI scanning routinely.Results:Of the 14 patients with neurofibroma,grapevine-like appearance was showed in 4 patients and lobulation in 10 patients.Fusiform or ovoid mass were assessed in the 6 patients with schwan-noma.The malignant triton tumor was showed as a mass.The neurofibromas showed isointensity (compared with adjacent muscle)on T1 WI,mainly hyperintensity yet mixed with some hypo-intensity septa on T2 WI.Schwannoma showed slight hypo-intensity on T1 WI and target like appearance with central hypo-intensity surrounded with a hyper-intensity rim on T2 WI.The malignant triton tumor showed high signal intensity mixed with annular or linear low signal intensity septation on T2 WI.Conclusion:The location,morphology,size、and signal intensities of peripheral neurogenic tumors varied,which can provide helpful information for the MRI diagnosis.