title: The added clinical value of 18F-FDG PET/CT in evaluating intratracheal recurrence of differentiated thyroid carcinoma: implications for planning surgery, assessing its completeness, and planning radioiodine therapy.
abstract: In selected patients with differentiated thyroid carcinoma, (18)F-FDG PET/CT has been shown to have added value. We present 2 clinical examples in the settings of both iodine-concentrating and non-iodine-concentrating lesions with tracheal involvement with special reference to its importance in planning of surgery or radioiodine therapy and assessing completeness of surgery. We believe that the use of PET/CT should be considered on a case-by-case basis and specifically when SPECT/CT is unavailable or has inconclusive findings.
authors.affiliation: Radiation Medicine Centre (BARC), Tata Memorial Centre Annexe, Parel, Mumbai, India.
authors.forename: Sandip
authors.initials: S
authors.lastname: Basu
authors.forename: Amit
authors.initials: A
authors.lastname: Abhyankar
mesh_terms: D000368:Aged; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use; D008297:Male; D064847:Multimodal Imaging; D009364:Neoplasm Recurrence, Local; D049268:Positron-Emission Tomography; D011880:Radiotherapy Planning, Computer-Assisted; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy*; D014057:Tomography, X-Ray Computed; D014132:Trachea
chemical_list: D007457:Iodine Radioisotopes; D019788:Fluorodeoxyglucose F18
keywords: FDG PET-CT; I-131; differentiated thyroid carcinoma; intratracheal extension; radioiodine therapy