Data from case series of endomycardial biopsies from affected patients suggest that ICI-induced myocarditis is typically characterized by a lymphocytic infiltrate in the myocardium dominated by CD8+ cytotoxic T cells, although there may also be a significant proportion of CD68+ or CD163+ macrophages and CD4+ helper T cells [92,93,94,95]. Here, CD68 is linked to myocarditis.