ca-mccqe1 MCQ (SBA): Septic arthritis of the hip

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MediumPaediatricsSeptic arthritis of the hipca-mccqe1ca-ccfpca-rcpsc-em

A 5-year-old boy presents with acute onset right hip pain and limp, low-grade fever, and inability to bear weight. ESR and CRP are elevated. Which diagnosis is most important to urgently exclude?

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