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Sarcoidosis (sar-koy-DO-sis) is a disease of unknown cause that leads to inflammation. This disease affects your body’s organs.

Normally, your immune system defends your body against foreign or harmful substances. For example, it sends special cells to protect organs that are in danger.

These cells release chemicals that recruit other cells to isolate and destroy the harmful substance. Inflammation occurs during this process. Once the harmful substance is gone, the cells and the inflammation go away.

In people who have sarcoidosis, the inflammation doesn't go away. Instead, some of the immune system cells cluster to form lumps called granuloma (More)

Understanding Sarcoidosis

  • Sarcoidosis - OSU Patient Education
  • JAMA Patient Page: Sarcoidosis (American Medical Association)
  • Pulmonary Sarcoidosis
  • Sarcoidosis
  • Sarcoidosis: From the NIH
  • Understanding Sarcoidosis (American Lung Association)
  • What Is Sarcoidosis? (National Heart Lung and Blood Institute)

  • Commonly Asked Questions

  • Are There Other Treatments for Sarcoidosis?
  • Can Sarcoidosis Cause Diabetes Mellitus?
  • Can Sarcoidosis Cause Neurological Problems?
  • Do I Need More Vitamin D?
  • Does Sarcoidosis Have Any Effects on the Brain?
  • How Common Is Sarcoidosis in the Stomach?
  • How Many Stages Does Sarcoidosis Have?
  • Is Sarcoidosis an Autoimmune Disease?
  • Sarcoidosis and IBD
  • (More)

  • Additional Information

  • Symptoms and Tests
  • Treatment
  • Complications
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    Last Updated: Apr 26, 2016