脱髓鞘的活动性的病灶可以显示为弥散受限。
Active foci of demyelination may demonstrate restricted diffusion.
在我们的病例中，周边的弥散受限的薄壁环状影可能代表脱髓鞘病变的活动性边缘。
In our case, the thin peripheral rim of restricted diffusion may represent an active edge of demyelination.
它们通常很小并且在T1和T2序列上高于脑脊液信号，弥散受限，可能会有强化。
They are usually small and will be hyperintense to CSF on T1 and T2 weighted imaging, show restricted diffusion, and may enhance with contrast.
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