Perthes Disease — RACP Paediatrics MCQ

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ModerateRheumatologyPerthes DiseaseRACP Paediatrics

A 7-year-old has a painful limp for 3 months. X-ray shows flattening and fragmentation of the left femoral head. Diagnosis?

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Correct answer: C — Perthes disease

Perthes disease: AVN of femoral head. Insidious onset, flattening/fragmentation on X-ray. Peak 4-8 years.

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