Further, possibly useful biomarkers of urachal adenocarcinomas with data of at least 10 cases are alpha-methylacyl-CoA racemase (AMACR, p504s), CD15 (Leu-M1), carcinoembryonic antigen (CEA), CK34βE12 (high-molecular weight cytokeratin), GATA binding protein 3 (GATA3), mucin 2 (MUC2), and mucin 5 AC (MUC5AC). The gene discussed is MUC5AC; the disease is bladder urachal adenocarcinoma.