AUC values ranged from 0.833 to 0.967 for discriminating cancer patients from healthy individuals.AUC values ranged from 0.7 to 0.81 for discriminating cancer from benign conditions.BLACAT1 expression was not able to discriminating cancer from benign conditions in breast, ovarian, prostate, and nasopharyngeal cancer. This evidence concerns the gene BLACAT1 and cancer.