urothelial dysplasia A morphologic finding indicating the presence of dysplastic changes in the transitional cell epithelium of the urinary tract. transitional cell dysplasia of the urinary tract urothelial dysplasia NCIT:C39856 MONDO:0006483 EFO:1000611 UMLS:C1275859 This is a finding in NCIT. This class may be obsoleted and ceded to HPO in future. MEDGEN:266165 urothelial neoplasm