Literature concerning serum levels of VEGF in various cancer types (such as cervical cancer, colon, lung and ovarian cancer) report associations with clinicopathological factors and a poor prognosis (Zusterzeel et al. 2009; Komatsu et al. 2017; Kwon et al. 2010; Xuan et al. 2017). The gene discussed is VEGFA; the disease is ovarian cancer.