In this study, we firstly performed differential expression analysis for pseudogene-derived RNAs in pancreatic adenocarcinoma, then conducted survival analysis for those significant differentially-expressed pseudogene-derived RNAs in pancreatic adenocarcinoma and next focused on the molecular mechanism of a pseudogene-derived RNA named AK4P1 in pancreatic adenocarcinoma. Here, AK4P1 is linked to pancreatic adenocarcinoma.