Studies have shown the potential prognostic value of markers including receptor tyrosine kinases such as fibroblast growth factor receptor 3 (FGFR3), epidermal growth factor receptor (EGFR), and ERBB2/human epidermal growth factor receptor 2 (HER2) in invasive bladder cancers [2]. The gene discussed is ERBB2; the disease is urinary bladder cancer.