RT Journal A1 Beck, Sarah E. A1 Schwab, Joseph H. A1 Rosenthal, Daniel I. A1 Rosenberg, Andrew E. A1 Grottkau, Brian E. T1 Metachronous Osteoid Osteoma of the Tibia and the T7 Vertebral BodyA Case Report JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2011 FD July 6 VO 93 IS 13 SP e73 1 OP 5 DO 10.2106/JBJS.J.01172 UL http://dx.doi.org/10.2106/JBJS.J.01172 AB Osteoid osteoma is a benign tumor that accounts for approximately 12% of all benign bone tumors1. Affected patients are usually adolescents and young adults, with 70% of patients being younger than twenty years of age at the time of diagnosis. The male:female ratio is 2:12. Patients typically present with dull, aching pain that has been persistent for weeks to months, is characteristically worse at night, and is relieved with aspirin or nonsteroidal anti-inflammatory drugs. Most lesions develop in the cortex or beneath the periosteum of the long bones, although a minority are intramedullary2.