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目的 探讨颅内生殖细胞瘤转移的MR影像学表现 ,为临床治疗方案的选择提供影像学依据。方法 结合文献资料 ,对10例具有转移灶的颅内生殖细胞瘤患者的临床与MRI资料进行分析。结果 2 5例颅内生殖细胞瘤中的 10例发生转移 ,转移发生率 40 %,其增强MRI可表现为 :①软脑膜条索状增粗 ;②脑或脊髓表面的结节状信号 ,病变累及部位弥漫性肿胀 ,信号不均 ,脑沟消失 ;③肿瘤前部楔形缺损或三脑室后部“笔尖样”扩大 ;④室管膜下层片状或弥漫性高信号 ;⑤颅外转移征象等。结论 增强MRI能准确检测颅内生殖细胞瘤转移 ,为临床确立合理治疗方案提供有价值信息。
Objective To investigate the MR imaging findings of intracranial germinoma metastasis and provide imaging evidence for the selection of clinical treatment options. Methods Combined with the literature, the clinical and MRI data of 10 patients with intracranial germinoma with metastasis were analyzed. Results In 25 cases of intracranial germinoma, 10 cases had metastasis and the incidence of metastasis was 40%. The enhancement of MRI showed: ① lenticular thickening; ② nodular signal on brain or spinal cord, Involving diffuse swelling of the site, the signal is not uniform, sulci disappear; ③ anterior tumor wedge-shaped defect or the back of the third ventricle, “nib-like” expansion; ④ subependymal flake or diffuse high signal; ⑤ extracranial metastasis signs . Conclusion Enhanced MRI can accurately detect intracranial germinoma metastasis and provide valuable information for establishing a reasonable treatment plan.