However, studies interrogating the clinical utility of RNA expression‐based molecular classifiers in urothelial neoplasms identified high p63 expression as a feature of the basal/squamous subtype, which was linked to poor patient outcomes in a group of 73 to 937 urothelial bladder cancer patients.9, 10, 11, 12. This evidence concerns the gene TP63 and urothelial neoplasm.