Muppet gratefully acknowledges the contribution of his good friend Dr. Manel Escobar who discovered and diagnosed the following case:
An 11-year-old girl with migrating bone pain for the last year, with normal radiographs, now presents with one month of low-degree fever. Chest and abdominal CT were unremarkable, except for the pelvic findings.
1. Fibrous dysplasia
2. Langerhans cell histiocytosis
4. None of the above
Click here for the answer to case #20