Background Immune checkpoint inhibitors. including antibodies against programmed death 1 (PD-1) and cytotoxic T-lymphocyte antigen 4 (CTLA-4). are being used with increasing frequency for the treatment of cancer. Immune-related adverse events (irAEs) including colitis. https://www.spidertattooz.com/Essie-Gel-Cause-Reflect-0-5-oz-736G-p22291/