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Bone tumour red flag — UKMLA MCQ

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HardKnee InjuriesBone tumour red flagUKMLA

A 15-year-old runner has progressive anterior knee pain and swelling without trauma. Examination reveals tenderness at the distal femur, night pain is reported, and symptoms are worsening despite rest. What is the most appropriate investigation?

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Correct answer: C — Urgent plain radiographs of the knee

Night pain and progressive swelling are red flags in an adolescent athlete. Plain radiographs are the correct first investigation to assess bone lesions and guide urgent referral. Treating as a benign overuse injury would risk delayed diagnosis.

Reference: NICE suspected cancer guidance; FSEM