AUTHOR=Hu Xinrong , Deng Lin , Pan Yufei , Zhang Guozhen , Ruan Xiaolan , Jiang Xinlan , Shen Hao , Zhao Lei , Dong Jun TITLE=Case report: Toripalimab plus anlotinib in postoperative recurrent renal pelvic sarcomatoid urothelial carcinoma JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1397855 DOI=10.3389/fonc.2024.1397855 ISSN=2234-943X