disease has location disease arises from structure urothelial cell neoplasm (disease) urinary system neoplasm urothelial neoplasm A neoplasm involving a urothelium. MONDO:0024337 NCIT:C39852 UMLS:C1519840 neoplasm of urothelium transitional cell neoplasm of the urinary tract tumor of urothelium urothelial neoplasm urothelium neoplasm urothelium neoplasm (disease) urothelium tumor transitional cell neoplasm urothelium