title: Osteoid osteoma of the femur with a double nidus: a case report.
abstract: Osteoid osteoma is a common benign lesion, that occurs in children and young adults. The authors report the observation of a multifocal lesion which is infrequently reported in the literature. S.A., a 10-year-old female came to our observation complaining of spontaneous pain in her right hip and cruralgia radiating to the homolateral knee over the last 6 months; the symptoms, which increased during the night, were relieved by treatment with NSAIDS. Clinical examination and imaging studies confirmed a diagnosis of osteoid osteoma with a double nidus; the lesion was treated by CT-guided thermo-ablation with radiofrequency under general anaesthesia. Complete regression of symptoms was observed at 2-year follow-up.
authors.affiliation: Divisione di Ortopedia Oncologica e Ricostruttiva, Centro Traumatologico Ortopedico, Largo Palagi 1, 50139 Firenze.
authors.forename: D
authors.initials: D
authors.lastname: Matera
authors.forename: D A
authors.initials: DA
authors.lastname: Campanacci
authors.forename: P
authors.initials: P
authors.lastname: Caldora
authors.forename: E
authors.initials: E
authors.lastname: Mazza
authors.forename: R
authors.initials: R
authors.lastname: Capanna
mesh_terms: D017115:Catheter Ablation / Q000379:methods; D002648:Child; D005260:Female; D005266:Femoral Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery; D005270:Femur Head / Q000000981:diagnostic imaging / Q000601:surgery; D005272:Femur Neck / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging / Q000601:surgery; D015641:Radiography, Interventional; D011877:Radionuclide Imaging; D016896:Treatment Outcome