"Sarcoid" Natural Recordings by Native Speakers
Sarcoid is not the most common or correct spelling. However, I believe you may be referring to "sarcoidosis" or "sarcoid".
Sarcoidosis, also known as sarcoid, is a systemic inflammatory disease characterized by the formation of abnormal granulomas, which are areas of inflammation and scarring in various parts of the body, most commonly the lungs, lymph nodes, and eyes. It can affect any organ, but more than 90% of cases affect the lungs.