硬膜骨化有2个影像学征象，即轨道征和逗点征。

There are 2 radiologic signs of dural ossification, namely, the tram track sign and the comma sign.

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硬膜骨化有2个影像学征象，即轨道征和逗点征。

There are 2 radiologic signs of dural ossification, namely, the tram track sign and the comma sign.

youdao