title: Primary osteosarcoma of the thyroid gland.
abstract: Primary extraosseous osteosarcoma of the thyroid gland is a rare tumor which is associated with a poor prognosis. In this report, we discuss such a tumor and its recurrence in a 78-yr-old female with multinodular goiter, focusing on the imaging evaluation of this unusual tumor.
authors.affiliation: Department of Radiological Science, UCLA School of Medicine 90024-1721.
authors.forename: E U
authors.initials: EU
authors.lastname: Nitzsche
authors.forename: L L
authors.initials: LL
authors.lastname: Seeger
authors.forename: B
authors.initials: B
authors.lastname: Klosa
authors.forename: N
authors.initials: N
authors.lastname: Freudenberg
authors.forename: E A
authors.initials: EA
authors.lastname: Moser
mesh_terms: D000368:Aged; D004164:Diphosphonates; D005260:Female; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis* / Q000000981:diagnostic imaging; D015609:Organotechnetium Compounds; D012516:Osteosarcoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D004164:Diphosphonates; D015609:Organotechnetium Compounds; C033905:technetium Tc 99m 1,1-diphosphonopropane-2,3-dicarboxylic acid; D013670:Sodium Pertechnetate Tc 99m