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| | Clinical description: This 9 year old female patient has a history of painless maxillary expansion for the past 5-6 years. She and her parents are interested in orthognathic surgery to correct the cosmetic defect. Her medical history is significant for a microcytic, hypochromic manemia. She has periodic blood transfusions to treat the anemia. She also has hepatosplenomegaly. Lateral skull radiographs show a “hair-on-end” appearance of the calvaria. |  |  |
Radiographic findings: |  | | Postoperative radiograph: |  |
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