Results the sigmoid sinus, internal auditory porus, jugular porus, cochlea, petrous ridge and the most posterior point of the posterior semicircular canal could be markers of surgery.

结果乙状窦沟、内听道孔、颈静脉孔、耳蜗、岩嵴和后半规管最后点等可作为手术标志。

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The variations of the sigmoid sinus included the enlargement of the sinus, the far-advanced sigmoid sinus and high jugular bulb.

乙状窦出现的变异包括乙状窦粗大、前置、高位颈静脉球。

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Methods: Dye injection into superior sagittal sinus after the ligation of bilateral internal jugular veins and then autopsy was done in 4 rhesus monkeys.

方法：选用猕猴，在双侧颈内静脉结扎情况下作经上矢状窦的染料灌注和动物尸检。

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