Age

18–85

Sex

ALL

Healthy volunteers

Not accepted

Between the ages of 18 and 85
Diagnosis of sarcoidosis confirmed by either biopsy or by manifestations consistent with acute sarcoidosis in absence of other known diagnosis.
Have a suspected diagnosis of sarcoidosis and is scheduled to undergo a biopsy procedure to confirm a diagnosis of sarcoidosis.
Able to tolerate and willing to undergo study procedures

Current cigarette smoking or smoking within six months prior to the study
Currently or recently (\<6months) on immunosuppressive therapy
Pregnancy
Patient inability to participate in the study, such as undergo venipuncture and or BAL

Epigenetic Regulation of Altered T-cell Immunity in Sarcoidosis