Through a comparison of PTPN3 expression in tumor samples from The Cancer Genome Atlas (TCGA) and normal samples from the Genotype-Tissue Expression (GTEx) database, it was shown that COAD, ESCA, LUAD, OV, PAAD, PRAD, TGCT, and UCS exhibited a greater level of PTPN3 expression. The gene discussed is PTPN3; the disease is neoplasm.