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目的:探讨单发脑转移瘤的CT和MRI诊断价值。方法:回顾性分析37例经手术病理证实或临床综合诊断确诊的单发脑转移瘤的CT和MRI表现。结果:病灶位于幕上31例,分布于皮髓质交界区21例。囊实性22例,实性9例,囊性6例。不规则环形强化13例,结节形强化7例,囊实形强化15例,均匀强化2例。病灶直径>1.0 cm时瘤周水肿常较明显。结论:单发脑转移瘤的CT、MRI表现具有一定的特征,增强扫描对诊断单发脑转移瘤有重要价值。
Objective: To investigate the diagnostic value of CT and MRI in solitary brain metastases. Methods: The CT and MRI findings of 37 patients with solitary brain metastases confirmed by pathology or clinical diagnosis were analyzed retrospectively. Results: The lesions were located in the supratentorial site in 31 cases, located in the cortex medulla junction zone in 21 cases. 22 cases of cystic solid, solid in 9 cases, cystic 6 cases. Irregular ring enhancement in 13 cases, nodular enhancement in 7 cases, capsule shape enhancement in 15 cases, uniform enhancement in 2 cases. Tumor diameter> 1.0 cm peritumoral edema often obvious. Conclusion: CT and MRI manifestations of solitary brain metastases have certain characteristics. Enhanced scanning is of great value in the diagnosis of solitary brain metastases.