PDGFD was found to be associated with tumor development in a variety of malignancies of epithelial origin, such as cholangiocarcinoma [43], prostate cancer [44, 45], breast cancer [46, 47], ovarian cancer [48], colon cancer [49], laryngeal cancer [50], renal cancer [51], and so on. The gene discussed is PDGFD; the disease is breast carcinoma.