As well as investigating NLR, PLR, mean platelet volume (MPV), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and blood and bronchoalveolar lavage (BAL) CD4/CD8 ratios in our study, the association between the features such as the diagnosis, stages, extrapulmonary involvement, pulmonary hypertension (PH), and response to treatment and prognosis has also been assessed in patients with sarcoidosis. The gene discussed is CD8A; the disease is sarcoidosis.