STC1 was altered in 14.55% of 110 cases (Deep Deletion was 14.55%) in ovarian cancer, 13.16% of 38 cases (Amplification was 5.26%, Deep Deletion was 7.89%) in lung cancer, and 7.36% of 584 cases (Mutation was 0.34%, Amplification was 0.17%, Deep Deletion was 6.85%) in the ovarian epithelial tumor. This evidence concerns the gene STC1 and ovarian epithelial tumor.