The top10 genes were BATF2, IFIT3, C1QB, IFITM3, CARD17, GBP5, OAS3, ETV7, AIM2, and GBP4 that with the hidden layer weights >50%were chosen as the ideal candidates for building the model and which also serves as gene signatures to build multilayer perceptron neural network to classifying sarcoidosis from PTB. This evidence concerns the gene ETV7 and sarcoidosis.