Osteoid osteoma was first described by Jaffe [1] in 1935. It constitutes 10-1 2% of all benign neoplasms of bone [2]. The classic radiologic and clinical presentations are well described in the literature [3]. Curative resection is dependent on complete excision of the nidus. Exuberant periosteal reaction and intracortical location, two of the common presentations of this lesion, hinder intraoperative localization. Preoperative,
intraoperative, and postoperative techniques for
localization of the nidus have arisen to ensure adequate resection [4, 5]. This report demonstrates a new technique for precise preoperative localization of the nidus.