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Fusobacterium nucleatum is an anaerobic micro-organism that is found only in the human oral cavity, where it co-exists with more than 500 other species.1 It causes diseases such as periodontal and soft tissue abscesses, which can spread to the brain and cause intracerebral infection.2 Infections of the brain involving F. nucleatum are uncommon but potentially severe, with many requiring surgery.3
Here we report a case of a 50-year-old man with a cerebellar abscess caused by Fusobacterium nucleatum that resulted in left-sided hemiplegia (Figures 1 and 2).
This patient presented in A&E following a fall, with left-sided weakness and pyrexia. CT and MRI imaging revealed a brain abscess in relation to the right parietal/posterior frontal lesions. This is shown in Figures 1 and 2. After 48 hours of progressively worsening left-sided weakness, the patient underwent drainage of the right brain abscess and was treated with antibiotics.
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