HDGF is a prognostic marker in several types of cancer including hepatocellular carcinoma, esophageal squamous cell carcinoma, gastric cancer, intrahepatic cholangiocarcinoma, early-stage cervical adenocarcinoma, gallbladder cancer, and non small cell lung cancer [2-7]. The gene discussed is HDGF; the disease is non-small cell lung carcinoma.