title: Metastatic undifferentiated spindle cell sarcoma of the thyroid gland evaluated by 18F-FDG PET/CT.
abstract: We describe a rare case of metastatic undifferentiated spindle cell sarcoma (USCS) of the thyroid gland evaluated by 18F-FDG PET/CT. A 63-year-old male patient with histological diagnosis of USCS of the thyroid gland underwent 18F-FDG PET/CT for staging. PET/CT revealed increased radiopharmaceutical uptake corresponding to a thyroid mass and mild 18F-FDG uptake in a 7-mm lung nodule, which was diagnosed as USCS metastasis. Based on these findings, the patient was referred to surgery and chemotherapy, but he died 6 months later for disease progression.
authors.affiliation: From the *Department of Nuclear Medicine and PET/CT Center, Oncology Institute of Southern Switzerland, Bellinzona; and †Institute of Pathology, Locarno, Switzerland.
authors.forename: Giorgio
authors.initials: G
authors.lastname: Treglia
authors.forename: Massimo
authors.initials: M
authors.lastname: Bongiovanni
authors.forename: Gaetano
authors.initials: G
authors.lastname: Paone
authors.forename: Luca
authors.initials: L
authors.lastname: Ceriani
authors.forename: Luca
authors.initials: L
authors.lastname: Giovanella
mesh_terms: D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D012509:Sarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18