title: Acute suppurative thyroiditis due to foreign body-induced retropharyngeal abscess presented as thyrotoxicosis.
abstract: Acute suppurative thyroiditis is an uncommon condition. Most patients have preexisting oropharyngeal fistulae. Penetrating oropharyngeal injuries resulting from swallowed foreign bodies provide an acquired channel of infection spreading into the relatively resistant thyroid gland. The authors describe a patient with infective thyroiditis complicating retropharyngeal abscess caused by a chicken bone that perforated the upper esophagus. Transient thyrotoxicosis complicating acute suppurative thyroiditis is very rare. Pertechnetate and Ga-67 scans confirmed extensive inflammation of the thyroid gland and the release of hormones as the cause, as distinct from concurrent Graves' disease. Awareness of this unusual complication is important to avoid inappropriate treatment for hyperthyroid disease.
authors.affiliation: Department of Radiology and Organ Imaging, United Christian Hospital, Kowloon, Hong Kong. jcschan@ha.org.hk
authors.forename: B C
authors.initials: BC
authors.lastname: Yung
authors.forename: T K
authors.initials: TK
authors.lastname: Loke
authors.forename: W C
authors.initials: WC
authors.lastname: Fan
authors.forename: J C
authors.initials: JC
authors.lastname: Chan
mesh_terms: D000208:Acute Disease; D000328:Adult; D005260:Female; D005547:Foreign Bodies / Q000150:complications*; D005710:Gallium Radioisotopes; D006801:Humans; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D017703:Retropharyngeal Abscess / Q000209:etiology*; D013670:Sodium Pertechnetate Tc 99m; D013969:Thyroiditis, Suppurative / Q000000981:diagnostic imaging / Q000209:etiology*; D013971:Thyrotoxicosis / Q000209:etiology*; D014057:Tomography, X-Ray Computed
chemical_list: D005710:Gallium Radioisotopes; D019275:Radiopharmaceuticals; D013670:Sodium Pertechnetate Tc 99m