title: Osteoid osteoma with a multicentric nidus.
abstract: A case is reported of a 16-year-old boy who presented with continuous pain in his right leg. Cortical thickening and diffuse medullary sclerosis was revealed on x-ray of the distal tibia. CT imaging showed a circumscribed annular pattern extending some 2.5 cm-s and indicating the multifocal nature of the lesion. The diagnosis of multifocal osteoid osteoma was confirmed after histological examination of the block of resected bone.
authors.affiliation: Department of Paediatric Orthopaedic Surgery, Universidad Autonoma de Madrid, Spain.
authors.forename: G
authors.initials: G
authors.lastname: Gonzalez
authors.forename: J C
authors.initials: JC
authors.lastname: Abril
authors.forename: I G
authors.initials: IG
authors.lastname: Mediero
authors.forename: T
authors.initials: T
authors.lastname: Epeldegui
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D013977:Tibia; D014057:Tomography, X-Ray Computed