典型的虎斑状改变是由于正常髓鞘形成的区域和髓鞘形成不良的区域交杂在一起所致，可以在MRI上看到，但是这种改变并不是PMD独有的。
The classic "tigroid" appearance that is the result of heterogeneous areas of myelination and dysmyelination may be seen on MRI but this finding is not exclusive to PMD.
典型的虎斑状改变是由于正常髓鞘形成的区域和髓鞘形成不良的区域交杂在一起所致，可以在MRI上看到，但是这种改变并不是PMD独有的。
The classic "tigroid" appearance that is the result of heterogeneous areas of myelination and dysmyelination may be seen on MRI but this finding is not exclusive to PMD.
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