Keywords: EF, eosinophilic fasciitis; ICI, immune checkpoint inhibitor; MRI, magnetic resonance imaging; PD-1/L1 inhibition; PFTs, pulmonary function tests; ROM, range of motion; autoimmunity; checkpoint inhibition; cutaneous toxicities; eosinophilic fasciitis; immune checkpoint inhibitors; immune-related adverse event; irAE, immune-related adverse event.