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Article Abstract
Brainstem tumors are bounded by a compact topography of eloquent tracts, cranial nerves, and nuclei. Reliable intraoperative neuromonitoring aids microneurosurgical technique to optimize safe resection. The authors present a case of motor mapping-guided resection of a recurrent brainstem pilocytic astrocytoma. They demonstrate reliable and continuous responses from the corticospinal tract at the level of the midbrain to the pons with dynamic subcortical motor mapping using a monopolar stimulating suction. Contralateral limb and ipsilateral face muscles can be simultaneously detected and tumor resected until a threshold of less than 1 mA, corresponding to 1 mm or less from the corticospinal tracts. The video can be found here: https://stream.cadmore.media/r10.3171/2024.10.FOCVID24110.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11748952 | PMC |
| http://dx.doi.org/10.3171/2024.10.FOCVID24110 | DOI Listing |
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