High FGFR3 positivity rates were observed in normal renal pelvis tissues, which displayed scores of 1+~2+, whereas 15.8% and 10% of Asian patients with UTUC at stages T3 and T4, respectively, showed FGFR3-negative results (Table 2). Here, FGFR3 is linked to renal pelvis/ureter urothelial carcinoma.