title: Occult thyroid carcinoma detected by FDG-PET scan in elderly osteosarcoma patients: report of two cases.
abstract: Osteosarcoma is a rare tumor in elderly patients. Simultaneous osteosarcoma and thyroid papillary carcinoma are much rarer, especially in the absence of early radiation or cancer predisposition. We present two patients with concurrent osteosarcoma and thyroid cancer that were detected using positron-emission tomography.
authors.affiliation: Department of Pathology, Korea Cancer Center Hospital, Seoul, Korea.
authors.forename: Min S
authors.initials: MS
authors.lastname: Kim
authors.forename: Youn S
authors.initials: YS
authors.lastname: Sim
authors.forename: Soo-Yong
authors.initials: SY
authors.lastname: Lee
authors.forename: Dae-Geun
authors.initials: DG
authors.lastname: Jeon
mesh_terms: D001859:Bone Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000601:surgery; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D019788:Fluorodeoxyglucose F18; D005500:Follow-Up Studies; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*; D012516:Osteosarcoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000601:surgery; D010027:Osteotomy; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D013964:Thyroid Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D013965:Thyroidectomy
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18