Background: The purpose of this prospective study was to identify if F-18-fluorodeoxy-D-glucose positron emission tomography (F-18-FDG PET) was a reliable noninvasive surrogate of histologic response in determining the efficacy of neoadjuvant chemotherapy before surgical resection in primary osteosarcoma.
Methods: Between January 2003 and December 2003, 10 patients with primary osteosarcomas were examined using F-18-FDG PET before neoadjuvant chemotherapy and surgery. The mean age at the time of first intervention was 19 years (range, 4-47 years).