47-year-old female suffered from pneumonia. She developed high fever, neck stiffness, photophobia and she was confused (specimen from autopsy).
- A section of the cerebellum is shown with partly detached leptomeninges.
- Leptomeninges show in part dense infiltrates of neutrophilic granulocytes, which extend along blood vessels deeply into sulci.
- Engorgement of meningeal vessels.