Atlas One · Host Biology · Scale 07 — System

Dermatomyositis

Dermatomyositis is an immune-mediated myopathy with pathognomonic skin findings (heliotrope, Gottron's); type I IFN signature is central; MSAs (anti-MDA5, anti-TIF1γ, anti-NXP2, anti-Jo-1) stratify subtypes; IVIG (FDA Oct 2021), JAK inhibitors (baricitinib) are treatments.

Also known as: dermatomyositis, DM, idiopathic inflammatory myopathy, IIM, anti-MDA5 myopathy, amyopathic dermatomyositis, antisynthetase syndrome, juvenile dermatomyositis, JDM

Scale 07 — SystemScale
draftStatus
2026-06-07Last Reviewed
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dermatomyositis

Dermatomyositis

Dermatomyositis is an immune-mediated myopathy with pathognomonic skin findings (heliotrope, Gottron's); type I IFN signature is central; MSAs (anti-MDA5, anti-TIF1γ, anti-NXP2, anti-Jo-1) stratify subtypes; IVIG (FDA Oct 2021), JAK inhibitors (baricitinib) are treatments.