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Objective: To report a unique case of cerebellopontine angle glioblastoma with concurrent spinal cord involvement. Background: Glioblastoma (GBM) is the most common primary malignancy of the central nervous system (CNS), comprising 46.6% of all CNS malignancies. By anatomic location, cerebellopontine angle (CPA) GBMs are exceedingly rare. To our knowledge, the following case represents the tenth reported case of CPA GBM and the first with a corresponding spinal cord tumor on presentation. Methods: Retrospective chart review was conducted for a patient with CPA GBM. The patient consented to the publication of her diagnostic studies. Result: A 43-year-old female presented with a 3-month history of right ear hearing loss. Brain magnetic resonance imaging (MRI) demonstrated a right CPA mass as well as a cervical spinal cord mass of unknown histology. Pathology showed GBM, IDH wildtype and negative for the H3 K27M mutation, while the cervical spinal cord lesion was not amenable to biopsy. She received

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