Osteoid osteoma has been found in nearly all bones and usually treated with radiofrequency ablation or laser photocoagulation. We reported a case of a radial shaft osteoid osteoma in a 37-year-old man and also reviewed the reported literature. The patient was presented with pain and swelling in his right forearm; conventional radiographic examination of forearm seemed to be normal;computerized axial tomography (CT or CAT) and magnetic resonance imaging (MRI) showed a typical image with a central 0.6 cm irregular lucent area surrounded by a zone of oval reactive bone sclerosis. The nidus was removed successfully by surgical excision and histological examination finally confirmed the diagnosis of osteoid osteoma.

Key words: Osteoid osteoma, radius, stress fracture.