脑内单发转移瘤的MRI诊断  

MRI diagnosis of solitary brain metastasis

作　　者：杨国奎[1] 殷全红[1] 倪晓明[1] 于大俊 YANG Guo-Kui YING Quan-Hong NI Xiao-Ming YU Da-Jun(Department of Radiology, People＇s Hospital of Baoying County, Baoying 225800, Chin)

机构地区：[1]江苏省宝应县人民医院放射科,江苏宝应225800

出　　处：《转化医学电子杂志》2016年第12期60-62,共3页E-Journal of Translational Medicine

摘　　要：目的：探讨单发脑转移瘤（SBM）的磁共振表现,提高MRI对其诊断和鉴别诊断的准确率.方法：回顾性分析江苏省宝应县人民医院放射科2013-10/2016-04收治的18例经临床确诊或病理证实的SBM患者的MRI资料.结果：18例SBM中,发生于幕上14例,幕下4例,位于皮质及皮髓质交界区12例,瘤体最大直径〈10 mm 4例,10~30 mm 10例,〉30 mm4例,重度水肿10例,中度水肿3例,轻度水肿2例,无水肿3例,增强后结节状强化3例,环形强化9例,混合型强化5例,合并出血1例.结论：SBM的MRI表现多样,但有一定的特征,瘤体的发生部位、瘤周水肿程度、MRI平扫和增强形态等均有助于提高SBM诊断和鉴别诊断的准确率.AIM：To investigate the manifestations of magnetic resonance imaging of SBM and to improve the accuracy of diagno- sis and differential diagnosis of MRI. METHODS： The MRI of 18 cases of patients clinically diagnosed as SBM admitted into Department of Radiology, People＇s Hospital of Baoying County were retrospectively analyzed. RESULTS： Among 18 cases of SBM, 14 cases occurred in the supratentorial region, 4 cases occurred in the subtentorial region, 12 cases in the junctional zone of cortex and corticomedullary. The maximum diameter of tumor was less than 10 mm with 4 cases, between 10 and 30 mm with 10 cases and more than 30 mm with 4 cases; 10 cases with severe edema, 3 cases with moderate edema, 2 cases with light edema and 3 cases with no edema. After enhancement, there were 3 cases with nodular enhancement, 9 cases with circular enhancement, 5 cases with mix-type enhancement and 1 case with hemorrhage. CONCLUSION： The MRI manifestations of SBM are various, but they have certain features. The location of tumor, the degree of peritumoral edema, MRI plain scanning and enhancement form will be helpful to improve the accuracy of diagnosis and differential diagnosis of SBM.

关 键 词：单发脑转移瘤 MRI 增强 

分 类 号：R739.41[医药卫生—肿瘤]