Neurosarcoidosis: Causes, Symptoms, and Treatment
Medically reviewed by Achuta Uppu, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Neurosarcoidosis?
A neurologist, a doctor who treats brain and nerve problems, usually leads care for neurosarcoidosis. In neurosarcoidosis, sarcoidosis causes inflammation (swelling and irritation) in the brain, spinal cord, or other nerves. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is neurosarcoidosis?
Neurosarcoidosis is a form of sarcoidosis. Inflammation occurs in the brain, spinal cord, and other parts of the nervous system. Sarcoidosis is a chronic disease that affects many parts of the body, mostly the lungs. In a small number of people, the disease involves some part of the nervous system.
In sarcoidosis, groups of immune cells form small, red, swollen lumps called granulomas.
Symptoms
The symptoms vary, because any part of the nervous system can be affected. Brain or head nerve problems can cause:
- Facial weakness or drooping, which can be sudden.
- Headache, confusion, dizziness, or seizures.
- Double vision, other vision problems, or blindness.
- Decreased hearing, or loss of the sense of smell or taste.
- Speech problems or dementia (serious loss of memory and thinking skills).
If the spinal cord is affected, people may have weak arms and legs. They may also have trouble walking or controlling urine or bowels. The pituitary gland sits at the base of the brain. If it is involved, it can cause extreme tiredness, thirst, high urine output, weight changes, or changed menstrual periods. Nerves outside the brain and spinal cord can be involved too. This can cause weakness, loss of feeling, or strange feelings in any body part.
Causes and who gets it
In sarcoidosis, the body's inflammation goes off track and causes immune cells to form granulomas. Studies suggest this inflammation might be triggered by infections and by substances in the environment, such as insecticides and mold. Your genes may affect how your immune system reacts to a trigger. For sarcoidosis in general, risk is higher if you have a close relative with it. It is also higher in women and in people of African or Scandinavian descent.
Sometimes the nervous system is affected before anyone knows a person has sarcoidosis. It can also happen with no lung or other organ problems at all.
How doctors diagnose it
A neurological exam checks the nerves and brain. It may show problems with one or more nerves. A history of sarcoidosis followed by nerve-related symptoms highly suggests neurosarcoidosis. The symptoms can look like other conditions, including multiple sclerosis, meningitis, and certain tumors.
Blood tests are not very helpful in diagnosing the condition. A lumbar puncture, also called a spinal tap, may show signs of inflammation. An MRI of the brain and spinal cord may help. A chest x-ray often shows signs of sarcoidosis in the lungs. A biopsy, which is a small sample of affected tissue, confirms the disorder. Sometimes a nerve or brain biopsy is needed.
Treatment
MedlinePlus says there is no known cure for sarcoidosis. Treatment is given if symptoms are severe or are getting worse, and the goal is to reduce symptoms. Corticosteroids such as prednisone are prescribed to reduce inflammation. You may need to take them for months, or even years. Other medicines may include hormone replacement and medicines that suppress the immune system.
If nerve damage causes numbness, weakness, or vision or hearing problems, you may need physical therapy. Braces, a cane, a walker, or a wheelchair may help too. Mental disorders or dementia may need medicines for depression, safety steps, and help with care.
For some people, the symptoms go away on their own in 4 to 6 months. Others have symptoms off and on for the rest of their lives, and the condition can cause permanent disability.
When to see a doctor
Contact your health care provider if you have sarcoidosis and any nerve-related symptoms appear. Call 911 or go to the emergency room if you have a sudden loss of sensation, movement, or body function, sudden weakness, a drooping face, or trouble speaking. Also call for a seizure, new confusion, a sudden change in vision, fainting, or trouble breathing or swallowing. In rare cases the brainstem (the stalk at the base of the brain) is involved. This is life threatening.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. A direct primary care doctor can start an evaluation and refer you to a neurologist. They can also help track your follow-up care.
Common questions
Is neurosarcoidosis the same as sarcoidosis?
No, neurosarcoidosis is a form of sarcoidosis that affects the nervous system. Sarcoidosis mostly affects the lungs, and only a small number of people have it in the nervous system.
Can neurosarcoidosis go away on its own?
Sometimes the symptoms do. For some people, symptoms go away on their own in 4 to 6 months. Others have symptoms off and on for life.
Is there a cure for neurosarcoidosis?
No cure is known for sarcoidosis, the disease behind neurosarcoidosis. Treatment is given if symptoms are severe or getting worse, and it aims to reduce symptoms.
Can neurosarcoidosis appear before sarcoidosis is found?
Yes, it can. Sometimes the nervous system is affected before anyone knows a person has sarcoidosis. It can also happen with no lung or other organ problems.
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Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
