When screening various head & neck and kidney cancer tissue samples, Squamous Cell Carcinoma, Melanoma, Papillary Renal Cell Carcinoma, Clear Cell Carcinoma, and Pancreatic Duct Adenocarcinoma showed a strongly detectable level of PTGFRN expression (Figure 1G–K). The gene discussed is PTGFRN; the disease is pancreatic ductal adenocarcinoma.