UBE2L6 and sarcoidosis: Next, we evaluated the differential diagnostic value of UBE2L6 using GSE83456 (Figure 2G), which included PTB,EPTB and sarcoid patients, the results showed that UBE2L6 had good diagnostic value in differentiating HC from PTB (AUC:0.985, 97.8% sensitivity, 95.1% specificity, 95%CI:0.961–1.000), but it is not very good at distinguishing EPTB from PTB(AUC:0.621,8.22% sensitivity,4.68% specificity,95%CI:0.506–0,736),and PTB from sarcoidosis (AUC:0.747, 80.0% sensitivity, 67.3% specificity, 95%, CI:0.644–0.850).