Autoimmune condition that causes skin changes and muscle weakness
Aetiology
- Systemic autoimmune
- Paraneoplastic phenomenon
- Drugs e.g. hydroyurea
Clinical presentation
Ocular features
- Heliotrope rash on eyelids
- Systemic autoimmune disease - look for dry eyes, scleritis etc.

Other features
- Proximal muscle weakness
- Gottron's papules on small joints of hands