CAJ | 학술논문

目的：为了提高对儿童髓母细胞瘤影像诊断的准确率，本文主要探讨儿童髓母细胞瘤的 CT 及 MRI 影像学表现。方法：回顾性分析了62例儿童髓母细胞瘤的 CT 及 MRI 影像资料。其中男43例、女19例，年龄2～18岁。62例均进行了 MR 扫描，51例又进行了 CT 扫描。62例全部经手术、病理证实。结果：62例髓母细胞瘤中56例位于小脑蚓部，6例位于小脑半球，其中18例累及四脑室侧孔区；47％的病例肿瘤中发现钙化；MR 扫描8例呈等 T1等 T2信号，54例呈长 T1长 T2信号，61例呈不同程度的不均匀强化。影像报告诊断准确率为60％。结论：儿童髓母细胞瘤有其典型的好发部位及特征性影像表现，掌握其影像学特点及鉴别诊断要点，可以提高影像诊断的准确率，降低误诊率。
목적：위료제고대인동수모세포류영상진단적준학솔，본문주요탐토인동수모세포류적 CT 급 MRI 영상학표현。방법：회고성분석료62례인동수모세포류적 CT 급 MRI 영상자료。기중남43례、녀19례，년령2～18세。62례균진행료 MR 소묘，51례우진행료 CT 소묘。62례전부경수술、병리증실。결과：62례수모세포류중56례위우소뇌인부，6례위우소뇌반구，기중18례루급사뇌실측공구；47％적병례종류중발현개화；MR 소묘8례정등 T1등 T2신호，54례정장 T1장 T2신호，61례정불동정도적불균균강화。영상보고진단준학솔위60％。결론：인동수모세포류유기전형적호발부위급특정성영상표현，장악기영상학특점급감별진단요점，가이제고영상진단적준학솔，강저오진솔。
Objective:To analyze imaging features of medulloblastoma in children,in order to improve the diagnostic accuracy.Methods:Imaging findings of 62 children with pathologically proved medulloblastoma were retrospectively stud-ied.The patients included 43 boys and 19 girls,with onset age ranging from 2 to 18 years old.All 62 patients underwent pre- and post-contrast MRI studies.Moreover,51 patients underwent CT scan.Results:Among 62 cases with melulloblas-toma,56 lesions located at the cerebellar vermis,and the other 6 lesions were in the cerebellar hemisphere.About 47% of le-sions had calcification.Eight cases showed iso-intensity on both T1 and T2 weighted image.Other 54 cases showed hypo-in-tensity on T1 weighted image and hyper-intensity on T2 weighted image.61 lesions showed heterogeneous enhancement with different degree of intensity.The rate of correct diagnosis with MRI was 60%.Conclusions:Medulloblastoma in children has typical location and imaging features.Being familiar with imaging findings of medulloblastoma may help to improve imaging diagnostic accuracy.