In case of the Ki-67-FAIDA the cut-off values were much lower as compared to the manual Ki-67 evaluation methods: TC-AC: 0.14% (AUC = 0.730, p = 0.008, sensitivity = 0.762, 1-specificity = 0.208), AC-SCLC: 3.23% (AUC = 0.946, p < 0.001, sensitivity = 0.900, 1-specificity = 0.048), AC-LCNEC: 8.32% (AUC = 1.000, p < 0.001, sensitivity = 1.000, 1-specificity = 0.000). Here, MKI67 is linked to small cell lung carcinoma.