Key words antiprogrammed cell death 1 autoimmune disease cemiplimab immune checkpoint inhibitor liver transplant nivolumab solid organ transplant ulcerative colitis Abbreviations used: ICI (immune checkpoint inhibitors), SCC (squamous cell carcinoma), PET-CT (positron emission tomography-computerized tomography), RT (radiation therapy), SOTR (solid organ transplant recipient), TMB (tumor mutational burden), UC (ulcerative colitis) Introduction Clinical trials investigating immune checkpoint...