title: False-positive uptake of 124I in a laryngeal cyst mimicking thyroid remnant after thyroidectomy and 131i therapy for follicular thyroid carcinoma.
abstract: A 46-year-old woman underwent total thyroidectomy followed by I therapy for follicular thyroid carcinoma stage T3 N0 M0. Eleven years after diagnosis, the patient complained about voice changes and feared recurrent disease. Follow-up I PET/CT scan revealed focal uptake in the neck, in the absence of any anatomic substrate on CT. Physical examination including laryngoscopy did not show any tumor or signs of recurrent disease. MRI of the neck demonstrated an oval-shaped lesion in the right false vocal cord. The lesion was removed in toto using carbon dioxide laser. Histological examination demonstrated a benign cyst, and the patient recovered entirely.
authors.affiliation: From the Departments of *Otorhinolaryngology-Head and Neck Surgery; †Radiology and Nuclear Medicine; and ‡Internal Medicine, VU University Medical Center Amsterdam, Amsterdam, the Netherlands.
authors.forename: Bo Jan
authors.initials: BJ
authors.lastname: Noordman
authors.forename: Emile
authors.initials: E
authors.lastname: Comans
authors.forename: Paul
authors.initials: P
authors.lastname: Lips
authors.forename: Rico N
authors.initials: RN
authors.lastname: Rinkel
mesh_terms: D018263:Adenocarcinoma, Follicular / Q000000981:diagnostic imaging* / Q000601:surgery; D003560:Cysts / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D007830:Larynx / Q000000981:diagnostic imaging* / Q000473:pathology; D008875:Middle Aged; D064847:Multimodal Imaging; D018365:Neoplasm, Residual / Q000000981:diagnostic imaging; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D013965:Thyroidectomy; D014057:Tomography, X-Ray Computed
chemical_list: D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals