A chronic, progressive disease of unknown AETIOLOGY. It is characterised by an abnormal GRANULOMA-like increase in cell growth of many organs, but especially the skin, lungs, lymph nodes, heart, salivary glands, eyes and the bones of the feet or hands....

Sarcoidosis, also called sarcoid (from the Greek 'sark' and 'oid' meaning "flesh-like") or Besnier-Boeck disease, is an immune system disorder characterised by non-caseating granulomas (small inflammatory nodules) that most commonly arises in young...