CNV indicated that PDE4DIP expression was positively related to DNA copy number in most cancers, including UCEC, sarcoma (SARC), KICH, BRCA, BLCA, esophageal carcinoma (ESCA), READ, OV, THCA, KIRC, GBM, COAD, LUAD, STAD, KIRP, cervical squamous cell carcinoma and endocervical adenocarcinoma, LIHC, LUSC, SKCM, and PRAD (Figure S2a). Here, PDE4DIP is linked to carcinoma of esophagus.