Osteoid osteoma of the femur in a 7-month-old infant treated with radiofrequency ablation
Osteoid osteoma occurs most commonly in children, adolescents, and young adults between the ages of 5 and 30 years. In the preschool age group, it is quite uncommon, accounting for only 3–8% of all osteoid osteoma cases. We report a case of osteoid osteoma in a 7-month-old infant, who presented with decreased use of the right lower extremity due to pain. Magnetic resonance imaging (MRI) showed an atypical appearance. A biopsy of the lesion, with histopathological examination, confirmed the diagnosis of osteoid osteoma. Radiofrequency ablation (RFA) of the nidus under computed tomography (CT) guidance was performed. The patient developed a recurrence after 3 months, which was treated with a second RFA. On subsequent follow-up, the infant did not show signs of pain after 1 month. In summary, this case report shows that osteoid osteoma can present in early infancy and can be successfully treated with RFA at this age, however, recurrence after the procedure can occur and close follow-up is recommended.
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- Osteoid osteoma of the femur in a 7-month-old infant treated with radiofrequency ablation
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Volume 39, Issue 11 , pp 1145-1149
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- 1. Department of Radiology, University of California San Francisco, San Francisco, CA, USA
- 2. Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, CA, USA
- 3. Department of Pathology, University of California San Francisco, San Francisco, CA, USA
- 4. Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
- 5. Department of Radiology and Biomedical Imaging, University of California San Francisco, 400 Parnassus Ave., A 367, Box 0628, San Francisco, CA, 94143-0628, USA