Osteoid osteomas (OOs) are small, benign but painful bone tumors, mainly observed in children and young adults. Pain, almost universal, is characteristically greater at night. Pain is well relieved by NSAIDs but resolution is not always complete and pain reappears a few hours after the last dose. Also long-term consumption of NSAID can lead to serious adverse events. Therefore OOs are usually cured shortly after diagnosis, mainly by means of percutaneous treatment (PT) under computed tomography (CT) (radiofrequency coagulation or interstitial laser ablation).