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Hyperplastic callus formation in both femurs in osteogenesis imperfecta
K Kutsumi1, T Nojima, K Yamashiro
1Department of Orthopedic Surgery, Hokkaido University School of Medicine, Sapporo, Japan.
Skeletal Radiology
|May 1, 1996
Abstract:
A 3-year-old boy with osteogenesis imperfecta had hyperplastic callus formation in the right femur, without preceding trauma or fracture. Radiologically, this bony mass in the femoral shaft mimicked osteosarcoma. Open biopsy showed that it was benign and suggested hyperplastic callus formation. Seven months after the biopsy, the hyperplastic callus had practically vanished. A similar process developed in the left femur 1 year later, also without fracture.