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Sarcoidosis
Definition Sarcoidosis is a disease of unknown cause in which inflammation occurs in the lymph nodes, lungs, liver, eyes, skin, and/or other tissues.
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Overview, Causes, & Risk Factors
The cause of the disease is unknown. Tissue samples from affected organs show clusters of immune cells (macrophages, lymphocytes, and multinucleated giant cells). These clusters are called granulomas.
Possible causes include a hypersensitive response to some factor in the environment, a genetic predisposition, or an extreme immune response to infection. The incidence varies widely according to race and sex.
The disease is most common among North Americans of African heritage and Northern European Caucasians. Women of African heritage are affected more than men of African heritage. The onset of the disease usually occurs in people between 30 and 50 years old. Sarcoidosis is very rare in young children.
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• Definition
• Sarcoidosis Overview, Causes, & Risk Factors
• Sarcoidosis Symptoms & Signs
• Sarcoidosis Diagnosis & Tests
• Sarcoidosis Treatment
• Sarcoidosis Prognosis
• Sarcoidosis Complications
• Calling Your Health Care Provider
• Pictures & Images
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Review Date : 2/6/2003
Reviewed By : David A. Kaufman, M.D., Pulmonary & Critical Care Medicine, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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