To determine the role of STK24 in tumorigenesis, we analyzed STK24 expression in three groups of patient specimen, including colorectal cancer (CRC), lung adenocarcinoma (LUAD), and pancreatic adenocarcinoma (PAAD) by tissue microarray (TMA)‐based immunohistochemistry (IHC). This evidence concerns the gene STK24 and pancreatic adenocarcinoma.