基底节区常见肿块样病变的MRI诊断

目的探讨基底节区常见肿瘤的临床和MRI特点。方法回顾分析2012年1月~2015年10月之间经病理证实的基底节区肿块性病变的临床、病理和影像资料，观察病变的影像特点及差异。结果基底节区病变常见囊性变，以胶质瘤和生殖细胞肿瘤多见，脂肪信号仅见于生殖细胞肿瘤；生殖细胞肿瘤水肿程度较轻，低级别胶质瘤和胶质母细胞瘤更明显；出血多见于胶质母细胞瘤和生殖细胞肿瘤；低级别胶质瘤多表现为轻、中度强化，胶质母细胞瘤和淋巴瘤多表现为明显强化。结论基底节区肿块样病变在影像表现各征象上有一定差别，可以为鉴别诊断提供帮助。

Diagnosis and differential diagnosis of magnetic resonance imaging for mass lesion in basal ganglia region

Objective To explore the clinical and MRI characteristic of mass lesion in basal ganglia region. Methods A total of 52 patients of mass lesion in basal ganglia region received a pathologic diagnosis and MR scan during 2012.1~2015.10. The characteristic of clinical material and MRI were reviewed. Results Cystic degeneration was commonly seen in gliomas and germ cell tumors, fat signal was found in germ cell tumors, edema in gliomas were more serious than that in other lesion. Glioblastomas and lymphoma were significantly enhanced. Conclusion There is a difference of clinical maerial and MRI between mass lesions in basal ganglia region, which can help differential diagnosis.