Sarcoidosis of the liver. Light micrograph of a section through a granuloma (fleshy nodule) in a human liver with sarcoidosis or Boeck's disease. Sarcoidosis is a chronic inflammation of the lymph nodes or organs. It causes multiple granulomas, which are similar to tuberculosis. The disease has no known origin, but predominantly affects black women between 20 and 30 years-old. Medical intervention is not always necessary, but if treatment is needed, this is in the form of corticosteroid drugs. Magnification unknown.