MRCS-1485
A 5 year old boy presents with an abnormal gait. On examination, his WCC was found to be 12 and ESR was 31. Past medical history shows a recent viral illness. Which of the following is the cause of these symptoms?
A 5 year old boy presents with an abnormal gait. On examination, his WCC was found to be 12 and ESR was 31. Past medical history shows a recent viral illness. Which of the following is the cause of these symptoms?