Central Nervous System Vasculitis (CNS Vasculitis)

CNS vasculitis, short for central nervous system vasculitis, is a rare form of blood vessel inflammation that affects only the brain and spinal cord. When blood vessels swell or become damaged, it can disrupt blood flow to critical areas of the nervous system, leading to strokes, seizures, confusion, or other serious neurological issues.

There are two main types.

• Primary CNS vasculitis occurs without evidence of another disease
• Secondary CNS vasculitis happens as part of another condition, such as lupus, an infection, or cancer.

Because symptoms can look like other brain conditions, CNS vasculitis is often difficult to diagnose. At UC Health in Cincinnati, Ohio, specialists from neurology, rheumatology, and neuroradiology work together to evaluate your full picture—so you get answers and treatment as early as possible.

CNS vasculitis can cause a wide range of symptoms—some subtle, others severe. Symptoms often depend on which parts of the brain or spinal cord are affected.

Common signs include:

• Severe or persistent headache
• Confusion or difficulty thinking clearly
• Seizures
• Numbness weakness
• Vision changes
• Speech or movement problems
• Changes in behavior or personality
• Stroke-like episodes

Diagnosing CNS Vasculitis

CNS vasculitis can mimic other neurological conditions, making diagnosis both essential and complex. At UC Health, we use a combination of tools to confirm or rule out the disease while minimizing delays in care.

The diagnostic process is often intensive, given the difficult nature of diagnosing the disease. Diagnosis may include:

• A detailed neurological exam
• MRI scans to detect vessel inflammation or damage
• Cerebral angiography to map blood flow,
• A lumbar puncture to analyze cerebrospinal fluid
• Blood tests to check for autoimmune activity or infection

In some cases, a brain biopsy is necessary to reach a clear diagnosis when other results remain uncertain.

Because symptoms and imaging can overlap with stroke or brain infection/inflammation, our care teams consult across specialties to ensure a rapid and accurate diagnosis and a treatment plan tailored to your needs.

Treatment for CNS vasculitis focuses on reducing inflammation, protecting brain and spinal cord function, and preventing relapses. Care is highly individualized, since the disease can affect people in very different ways.

• Corticosteroids, such as prednisone or intravenous methylprednisolone, are often the first treatment to quickly control inflammation.
• In more severe or persistent cases, chemotherapy agents like cyclophosphamide or other immunosuppressive medications may be used.
• Supportive care is also important. Depending on your needs, this may include treatment for seizures, rehabilitation services such as physical or occupational therapy, and strategies to manage fatigue, pain, or mood changes.

Because CNS vasculitis can relapse, ongoing monitoring with labs, imaging, and clinical visits helps balance treatment effectiveness with medication safety.

CNS vasculitis is a rare, complex, and potentially devastating condition, which makes specialized, coordinated care and rapid diagnosis essential. At UC Health, your case is managed by an expert team that includes stroke neurologists, including the only physician in the region trained in both stroke and autoimmune neurology.

Our comprehensive team also includes rheumatologists, neuroradiologists, and pathologists working together to ensure accuracy at every step. Using advanced imaging, cerebral angiography, and biopsy protocols, our specialists can provide a precise diagnosis when other causes are uncertain.

From there, your treatment plan is personalized to your unique symptoms, health history, and long-term goals. Beyond medications, our team supports you with services like seizure management, rehabilitation, and counseling to help you recover and maintain quality of life. Patients also benefit from UC Health’s commitment to innovation, with access to emerging diagnostic tools and therapies that may not be available elsewhere.

At every stage, we place you at the center of your care—offering expertise, compassion, and the relentless pursuit of better outcomes.

If you or a loved one is experiencing unexplained neurological changes, it’s critical to seek expert care—early treatment can reduce the risk of permanent damage. Contact the team at the UC Gardner Neuroscience Institute by calling 513-475-8730.