What causes CNS syndrome?

CNS (Central Nervous System) syndrome isn't a specific medical diagnosis but generally refers to a range of neurological symptoms resulting from various underlying conditions affecting the central nervous system, including the brain and spinal cord. Multiple factors can contribute to CNS-related issues, including infections (like meningitis), neurodegenerative diseases (such as multiple sclerosis, Alzheimer's disease, or Parkinson's disease), trauma (such as concussion, stroke, or spinal cord injury), metabolic disorders, autoimmune conditions, vascular diseases, and congenital malformations. Each condition manifests differently, leading to an array of symptoms based on the specific area of the CNS affected, such as muscle weakness, sensory deficits, cognitive impairment, loss of coordination, and altered levels of consciousness. Treatments depend on the underlying cause and may include medications, physical rehabilitation, or in some cases, surgery.

Leukoencephalopathy with vanishing white matter - Wikipedia