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JDM Calcinosis — RACP Paediatrics MCQ

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ModerateRheumatologyJDM CalcinosisRACP Paediatrics

A 10-year-old girl presents with proximal muscle weakness, a heliotrope rash, and nail fold capillary changes. CK is elevated. What specific complication of JDM must be monitored for long-term?

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Correct answer: E — Calcinosis (dystrophic calcification in subcutaneous tissue and muscle)

Calcinosis is a significant long-term complication of JDM, occurring in 30-70% of patients. Subcutaneous calcium deposits cause pain, skin breakdown, joint contractures, and infection. Early aggressive treatment of JDM may reduce calcinosis risk. No proven treatment exists once established.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: JDM