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来源： ACR Wednesday 投稿邮箱：2519330936@qq.com 版主微信号： fsslong2 【临床病史】 患者，42岁女性，有头痛史，有头痛史和人格改变，行CT扫描。42-year-old female with history of headache and personality change undergoes a CT brain scan. 【影像图片】 MRI图像 【影像表现】 Axial non contrast enhanced CT [Figure 1] shows a large lesion isointense to the brain in the frontal lobes crossing the midline. Contrast enhanced axial image Figure 2] shows avid contrast enhancement of the lesion. T2W axial image (Figure 3) shows a mixed signal large lesion with little surrounding edema. Proton density axial image Figure 4) shows a lesion which is largely isointense to the surrounding brain parenchyma. The lesion (Figure 5 and Figure 6) is low signal on TIW image with marked contrast enhancement. Post contrast TIW sagittal im
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