AUTHOR=Wei Yongbao , Hong Huaishan , Huang Haijian TITLE=Primary Langerhans cell sarcoma in the urinary bladder: Case report and literature review JOURNAL=Frontiers in Oncology VOLUME=Volume 13 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2023.1118222 DOI=10.3389/fonc.2023.1118222 ISSN=2234-943X ABSTRACT=Langerhans cell sarcoma (LCS) is a rare malignancy of dendritic cells and usually results in poor oncological outcomes. We present the first case of primary LCS in the urinary bladder treated by TURBT and short-term local chemotherapy. TURBT and regional chemotherapy may be a remedial method with good for patients with LCS urinary bladder.