Elevated levels of GFL and RET expression, without mutation, are detected in a subset of several other cancers including: melanoma, glioma, neuroblastoma, seminoma, endometrial, and head and neck cancers and renal cell carcinomas (Wiesenhofer et al., 2000; Narita et al., 2009; Pandey et al., 2010; Flavin et al., 2012; Chuang et al., 2013; Kosari et al., 2014; Lin et al., 2016). The gene discussed is RET; the disease is cancer.