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Neuronavigation strategy. By merging the images of MRI and DTI, the tumor (yellow cross) was shown in the right pons with the brainstem tract displaced posteriorly and contralaterally, with a little posteriorly and ipsilaterally. A subtemporal approach (red arrow, indicated the direction of the approach) was therefore chosen to avoid most of the tract. DTI, diffusion tensor image; MRI, magnetic resonance imaging.
