CAJ | 학술논문

目的：探讨颅内胚胎发育不良性神经上皮瘤（DNT）的临床及 MRI 表现特征，以提高诊断水平。方法回顾性分析21例经手术和病理证实的颅内胚胎发育不良性神经上皮瘤的 MRI 表现，全部病例术前均行 MRI 平扫及增强扫描，重点研究 DNT 的发生部位、形态特征、MRI 信号特点、强化方式等情况。结果21例临床均以癫痫为主要症状，神经系统检查无定位体征，21例患者的病灶均局限于皮层或以皮层为主，呈长 T1长 T2信号，病灶以额顶叶最多见，13例病灶形态呈典型的三角征；14例患者肿瘤内均见到多发囊变区及等信号分隔，17例瘤周无水肿，增强扫描2例有轻度强化。结论 DNT 的临床及 MRI 影像学表现具有特征性，综合判断有助于本病的诊断。
목적：탐토로내배태발육불량성신경상피류（DNT）적림상급 MRI 표현특정，이제고진단수평。방법회고성분석21례경수술화병리증실적로내배태발육불량성신경상피류적 MRI 표현，전부병례술전균행 MRI 평소급증강소묘，중점연구 DNT 적발생부위、형태특정、MRI 신호특점、강화방식등정황。결과21례림상균이전간위주요증상，신경계통검사무정위체정，21례환자적병조균국한우피층혹이피층위주，정장 T1장 T2신호，병조이액정협최다견，13례병조형태정전형적삼각정；14례환자종류내균견도다발낭변구급등신호분격，17례류주무수종，증강소묘2례유경도강화。결론 DNT 적림상급 MRI 영상학표현구유특정성，종합판단유조우본병적진단。
Objective:To study clinical MRI inaging and features of intracranial dysmbryoplastuc neuroepithelial tumor (DNT)and improve its accurate diagnosis. Methods:The MRI findings of 21cases of DNT comfirmed operatively and pot-helogically were reviewed. All the 21DNTs were scanned by MR plain scan and enhanced scan. The emphasis was on the lo-cation,the morpholagicai character,MRI signals and therehanced manners of DNT. Results:All patients had opilepsia as the man symptom,but the neurological deficits were absent. The focus of all 21patients was located in the cerebral cortex or mostly in the cerebral cortex. The lesions appeared as lorg T1 and T2signal intensing,and lesions was predominantly loca-ted in the frontal and parietal lobes. Modality of 13 cases lesion was typical trianglesing. The lesions of 14 cases showed multiple cystic changes,and equal signal compatmentation. Seventeen cases devoided of peritumoral edema or mass effect. The lesions has mild enhancement in 2 cases. Conclusion:The clinical and MRI imaging features of DNT are characteris-tic,which might be helpful for the diagnosis of DNT.