We discovered that ANLN expression was significantly upregulated in 28 cancer types, including ACC, BLCA, BRCA, CESC, CHOL, COAD, lymphoid neoplasm diffuse large B-cell lymphoma (DLBC), ESCA, HNSC, KICH, KIRC, KIRP, brain lower grade glioma (LGG), LIHC, LUAD, LUSC, ovarian serous cystadenocarcinoma (OV), PAAD, PCPG, PRAD, READ, skin cutaneous melanoma (SKCM), STAD, testicular germ cell tumors (TGCT), THCA, thymoma (THYM), UCEC, and uterine carcinosarcoma (UCS). This evidence concerns the gene ANLN and ovarian serous cystadenocarcinoma.