SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Neurosarcoidosis. Coloured magnetic resonance imaging (MRI) scan of a coronal section of the brain of a patient with neurosarcoidosis. Also known as Boeck's disease, this is a chronic inflammation of the lymph nodes or organs. It causes multiple granulomas (nodular growths, light blue) to form in body tissue. The most commonly affected organs are the lungs and skin. The brain is affected in 10% of cases. The disease has no known cause. Symptoms depend upon the area of the brain affected and may include facial weakness and seizures. It often regresses on its own after 2 years. Medical intervention is not always necessary, but if required is in the form of corticosteroid drugs to reduce inflammation.
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