title: 18F-DOPA PET/CT in Orbital Metastasis From Medullary Thyroid Carcinoma.
abstract: A 53-year-old-woman is being followed up for a sporadic medullary thyroid carcinoma that was initially treated surgically. Nine years later, a progressive increase in calcitonin levels along with headaches was observed. An orbital metastasis from medullary thyroid carcinoma was diagnosed by performing an F-DOPA PET/CT. The orbital lesion was treated by an external beam radiation. Four months later, an MRI revealed a global morphological stability and a reduction in calcitonin levels.
authors.affiliation: From the *Nuclear Medicine and Thyroid Oncology Unit, and †Radiotherapy Department, Institut Bergonié, Bordeaux, France.
authors.forename: Jean-Baptiste
authors.initials: JB
authors.lastname: Ruiz
authors.forename: Mathieu
authors.initials: M
authors.lastname: Orré
authors.forename: Anne-Laure
authors.initials: AL
authors.lastname: Cazeau
authors.forename: Bénédicte
authors.initials: B
authors.lastname: Henriques de Figueiredo
authors.forename: Yann
authors.initials: Y
authors.lastname: Godbert
mesh_terms: D000328:Adult; D002116:Calcitonin / Q000378:metabolism; D018278:Carcinoma, Neuroendocrine / Q000473:pathology*; D004295:Dihydroxyphenylalanine; D005260:Female; D005462:Fluorine Radioisotopes; D006801:Humans; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging* / Q000378:metabolism / Q000556:secondary*; D000072078:Positron Emission Tomography Computed Tomography; D013964:Thyroid Neoplasms / Q000473:pathology*
chemical_list: D005462:Fluorine Radioisotopes; D004295:Dihydroxyphenylalanine; D002116:Calcitonin