Primary Cutibacterium Acnes Leptomeningeal Abscess Causing Focal Seizures

A previously well 71-year-old male presented with recurrent stereotyped episodes of right hemisensory disturbance, weakness, and expressive dysphasia lasting 10-20 minutes. Cognitive decline had been noted over the preceding 6-months. He was otherwise in good health with no history of infective symptoms or prior neurosurgical procedures. Interictal neurological examination was unremarkable.