Osteoid osteoma and osteoblastoma. Current concepts and recent advances.

摘要: Osteoid osteomas are common lesions, constituting one-eighth of the benign bone tumors. Their size (less than 1.5 cm) and characteristic radiographic clinical presentation usually diagnostic. Response to salicylates is quite variable not a reliable sign. Extremely high levels prostaglandin metabolites have been found in osteoid may explain inflammatory features lesions. Preoperative localization with computed tomography (CT) scans intraoperative confirmation location resection radioscintigraphy dramatically reduced recurrence rate last 26 patients. Complete excision, even if accomplished by intralesional technique, successful eradicating tumor. Osteoblastomas constitute 1% Although their histology differs minimally from osteomas, they achieve larger behave more aggressively. Commonly occurring spine, require careful anatomic delineation CT myelography. excision eliminates lesion.