TP53 and neoplasm: The rate of TERT promoter mutations and TP53 in tumor specimens of patients with NMIBC were 4/13 (31%) and 7/13 (54%) in older age groups (stratified by median age), and 8/14 (57%) and 2/14 (14%) in younger age groups, but we could not observe these differences in normal urothelium.