Diagnosis:
Suggested by MRI and confirmed by pathology (CSF, biopsy)
Findings on Investigations:
CT:
- May be normal
- Hydrocephalus
MRI:
- May be normal
- Meningeal enhancement
- Multifocal parenchymal involvement
Pathology:
- CSF & leptomeningeal involvement
- Usually nonHodgkin’s lymphoma