Doppler duplex color localization of osteoid osteomas

We present two cases of osteoid osteoma in adolescent boys. The lesions wer e located in the proximal metaphysis of the right tibia and left femoral di aphysis respectively. Doppler duplex color study demonstrated clearly the h ighly vascular nidus and its feeding artery in one case and only the feedin g artery in the second. We believe these are the first descriptions of oste oid osteomas assessed with Doppler duplex color, which was also used as gui dance for the percutaneous localization and biopsy.