Practice question

Answer the question and get instant feedback.

A 4-year-old boy presents with a limp and hip pain that started yesterday after a mild upper respiratory tract infection last week. He is afebrile. Examination shows limited range of motion of the affected hip, particularly internal rotation and abduction, due to pain. Inflammatory markers (WCC, CRP) are normal. What is the most likely diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.