title: Uterine leiomyosarcoma metastatic to thyroid shown by18F-FDG PET/CT imaging.
abstract: About one third of focal thyroid uptakes in a fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) study are malignant, the most frequent histological type being papillary carcinoma. Metastases to the thyroid account for approximately 7.5% of thyroid malignancies and come mainly from kidney, lung, head and neck, and breast cancers. We report the case of a 64-year-old woman presenting a fast growing thyroid nodule whose primitive or metastatic origin was not obvious, for which18F-FDG PET/CT helped in the diagnostic process and in the later management of the patient. Histopathologic findings finally revealed a metastasis of uterine leiomyosarcoma.
authors: Institut Curie, Service de Médecine Nucléaire, Saint-Cloud, France; Hôpital Tenon-APHP, Médecine Nucléaire, Paris, France.
authors: M
authors: M
authors: Gauthé
authors: Servicio de Medicina Nuclear, Complejo Hospitalario Universitario de Granada, Granada, Spain. Electronic address: nathalietestart@gmail.com.
authors: N
authors: N
authors: Testart Dardel
authors: Institut Curie, Service de Médecine Nucléaire, Saint-Cloud, France.
authors: C
authors: C
authors: Nascimento
authors: Institut Curie, Service d'Anatomie Pathologique, Saint-Cloud, France.
authors: M
authors: M
authors: Trassard
authors: Institut Curie, Service de Chirurgie, Saint-Cloud, France.
authors: A
authors: A
authors: Banal
authors: Institut Curie, Service de Médecine Nucléaire, Saint-Cloud, France; Institut Curie, Department of Nuclear Medicine, Saint-Cloud, France.
authors: J-L
authors: JL
authors: Alberini
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D003131:Combined Modality Therapy; D017809:Fatal Outcome; D005260:Female; D005462:Fluorine Radioisotopes / Q000032:analysis*; D019788:Fluorodeoxyglucose F18 / Q000032:analysis*; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging; D007890:Leiomyosarcoma / Q000000981:diagnostic imaging* / Q000556:secondary* / Q000628:therapy; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D008875:Middle Aged; D000072078:Positron Emission Tomography Computed Tomography; D019275:Radiopharmaceuticals / Q000032:analysis*; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D014594:Uterine Neoplasms / Q000473:pathology* / Q000628:therapy
chemical_list: D005462:Fluorine Radioisotopes; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18; C000615276:Fluorine-18
keywords: Leiomiosarcoma; Leiomyosarcoma; PET/CT; PET/TC; Sarcoma; Thyroid; Tiroides; Uterus; Útero