MR随访研究显示，病灶的这种延伸具有可逆性，最终于病灶中心处遗留小的后遗症病灶，进一步的提示病灶的延伸系水肿所致（图1）。

The reversibility of the extension, leaving small residual lesions at the center, as observed on follow-up MR studies, further supports their edematous nature(Fig 1).

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MR随访研究显示，病灶的这种延伸具有可逆性，最终于病灶中心处遗留小的后遗症病灶，进一步的提示病灶的延伸系水肿所致（图1）。

The reversibility of the extension, leaving small residual lesions at the center, as observed on follow-up MR studies, further supports their edematous nature(Fig 1).

youdao