title: Osteoblastoma of the mandible mimicking osteosarcoma in FDG PET/CT imaging.
abstract: Osteoblastomas are rare tumors accounting for approximately 1% of all primary bone tumors. We report a case of osteoblastoma of the mandible with high FDG uptake. Initially, this lesion was judged as an osteosarcoma. Osteoblastomas are benign slow-growing tumors. High-resolution thin-slice CT images of the lesion as part of the PET/CT study help to characterize its morphology and extension, thus facilitating biopsy planning and resection. Approximately 25% of osteoblastomas initially have the imaging appearance of a malignant tumor. In our case, complete resection of the lesion followed by reconstruction with a bone graft was performed.
authors: Department of Nuclear Medicine and Radiology, Cantonal Hospital Lucerne, Lucerne, Switzerland. klaus.strobel@luks.ch
authors: Klaus
authors: K
authors: Strobel
authors: Michael
authors: M
authors: Merwald
authors: Martin
authors: M
authors: Huellner
authors: Hans R
authors: HR
authors: Zenklusen
authors: Johannes
authors: J
authors: Kuttenberger
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging* / Q000473:pathology; D008339:Mandibular Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D064847:Multimodal Imaging; D018215:Osteoblastoma / Q000000981:diagnostic imaging* / Q000473:pathology; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18