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Related to Greater superficial petrosal nerve: nerve of pterygoid canal, External petrosal nerve, Petrosus major
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The elevation of the dura allowed for the visualization of the greater superficial petrosal nerve anteriorly, the arcuate eminence, the superior semicircular canal, and the roof of the middle ear (figure 3).
By exposing the greater superficial petrosal nerve up to the geniculate ganglion, this technique carries the risk of causing a lesion in the petrosal artery.
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