为到达斜坡，有可能需要切除鞍底，然后将骨窗向下扩大到斜坡直至蝶窦下缘。
In approaching the clivus, the floor of the sella turcica may be removed and the bony opening extended downward on the clivus to the inferior margin of the sphenoid sinus.
为到达斜坡，有可能需要切除鞍底，然后将骨窗向下扩大到斜坡直至蝶窦下缘。
In approaching the clivus, the floor of the sella turcica may be removed and the bony opening extended downward on the clivus to the inferior margin of the sphenoid sinus.
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