AUTHOR=Feng Jun , Niu Wenbo , Zhang Juan , Ding Yuanyi , Li Zheng , Zhang Jianfeng , Li Baokun , Li Chenhui , Wang Feifei , Wang Guiying , Yu Bin TITLE=Pathological complete response after monotherapy with immune checkpoint inhibitors for bifocal colon cancer in a patient with lynch syndrome and situs inversus totalis: a case report JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1571607 DOI=10.3389/fimmu.2025.1571607 ISSN=1664-3224