AUTHOR=Kramer Mario W. TITLE=Editorial: Case reports in urothelial cancer JOURNAL=Frontiers in Oncology VOLUME=13 YEAR=2023 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2023.1150420 DOI=10.3389/fonc.2023.1150420 ISSN=2234-943X