In the CyTOF cohort, MMD group displayed heightened expression levels of CCR10, CXCR3, CX3CR1, CD45RA, CD45RO, CD11b, CD11c, CD25, CD27, CD62L, HLA‐DR, p‐STAT3, ERK and TGFβ compared to the HC group. Here, TGFB1 is linked to multiminicore myopathy.