The first route of treatment in<unk>  is via medical means. Although necessary, radiation therapy (or chemotherapy) is controversial in the treatment of<unk> . Cases of postirradiation sarcoma have been reported after the use of these modalities. However, it is possible that the original histologic diagnosis was incorrect and the initial lesion was osteosarcoma since histologic differentiation of these two entities can be very difficult. The alternative means of treatment consists of surgical therapy. The treatment goal is complete surgical excision of the lesion. The type of excision depends on the location of the tumor. * For stage 1 and 2 lesions, the recommended treatment is extensive intralesional excision, using a high-speed burr. Extensive intralesional resections ideally consist of removal of gross and microscopic tumor and a margin of normal tissue. * For stage 3 lesions, wide resection is recommended because of the need to remove all tumor-bearing tissue. Wide excision is defined here as the excision of tumor and a circumferential cuff of normal tissue around the entity. This type of complete excision is usually curative for<unk> . In most patients, radiographic findings are not diagnostic of<unk> ; therefore, further imaging is warranted. CT examination performed with the intravenous administration of contrast agent poses a risk of an allergic reaction to contrast material. The lengthy duration of an MRI examination and a history of claustrophobia in some patients are limiting the use of MRI. Although<unk>  demonstrates increased radiotracer accumulation, its appearance is nonspecific, and differentiating these lesions from those due to other causes involving increased radiotracer accumulation in the bone is difficult. Therefore, bone scans are useful only in conjunction with other radiologic studies and are not best used alone.
Osteoblastoma
Osteoma
Osteochondroma
Osteosarcoma
Enchondroma
Bone cyst
Osteoid osteoma
Brown tumor