Background: The gram-negative aerobic bacterium Moraxella osloensis is an opportunistic pathogen in brain tissues.
Case summary: The gram-negative aerobic bacterium Moraxella osloensis was isolated from a patient's brain tissue during a stereotactic biopsy.
Conclusion: This is the first report of a brain tissue infection with Moraxella osloensis possibly causing brain gliomatosis.
Keywords: Brain infection; Case report; Cerebral gliomatosis; Moraxella osloensis; Stereotactic brain biopsy.
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