“…In a recent literature review, the authors found 15 cases of fasciitis from immunotherapy, with 9 fulfilling the proposed diagnostic criteria for EF. 5 To our knowledge, there are 10 reported cases of EF from ICI therapy in the literature. 4 , 5 , 6 , 7 , 8 , 9 , 10 Among these 10 cases, the median age was 55 years (range, 43-77), 5 were females, median onset was 11 months (3-22) after initiation of ICI therapy, and 8 of 9 (89%) had peripheral eosinophilia.…”