Sarcoidosis (from sarc meaning flesh, -oid, like, and -osis, diseased or
abnormal condition), also called sarcoid, Besnier-Boeck disease or Besnier-Boeck-Schaumann
disease, is a disease in which abnormal collections of chronic inflammatory cells
(granulomas) form as nodules in multiple organs.
The cause of sarcoidosis is unknown. Granulomas most often appear in the lungs or
the lymph nodes, but virtually any organ can be affected. Normally the onset is
gradual. Sarcoidosis may be asymptomatic or chronic.
It commonly improves or clears up spontaneously. More than 2/3 of people with
lung sarcoidosis have no symptoms after 9 years. About 50% have relapses. About
10% develop serious disability. Lung scarring or infection may lead to respiratory
failure and death.Chronic patients may deal with waxing and waning symptoms over
Sarcoidosis is a disease that results from a specific type of inflammation of
tissues of the body. It can appear in almost any body organ, but it starts most
often in the lungs or lymph nodes. The cause of sarcoidosis is unknown.
The disease can appear suddenly and disappear. Or it can develop gradually and
go on to produce symptoms that come and go, sometimes for a lifetime.