DLK1 and neoplasm: Genes such as AGR2, TFF3, TESC, IFIT1, TGFA, DLK1, POSTN, SERPINE1, SCGB2A2, and SFRP2 with AUC values between 0.7 and 0.9 can independently predict whether a tumor is localized in the ovaries or in the fallopian tubes (Figure 5).