A paediatric form of dermatomyositis

PC

Clinical features include:

• Fatigue
• Joint pain
• Weakness of proximal muscles
• Malar rash
• Heliotrope rash over eyelids

Investigations

Bloods may show:

• Raised ESR
• Raised creatine kinase (CK)

In addition to bloods indicating JDM, diagnoses can be confirmed via:

• MRI scans showing muscle oedema
• Muscle biopsies
• Nailfold capillaroscopy showing microangiopathy

Management