IL9 and sarcoidosis: Moreover, it is recommended to directly compare these measurements with other biomarkers that have been proposed to differentiate between sarcoidosis and TB, such as serum levels of leptin (AUC = 0.76), ICAM-1 (AUC = 0.72) C1q (AUC = 0.69), TNF-α (AUC = 0.95), IL-9 (AUC = 0.92), IL-10 (AUC = 0.80) and IL-17 (AUC = 0.94), especially in relation to uveitis [65,89,90].