title: Imaging identifies submandibular ectopic thyroid tissue.
abstract: The identification of submandibular ectopic normal thyroid in the lateral neck with a coexisting normally located and functional thyroid gland is rare. Ectopic normal thyroid tissue in the midline location is most commonly related to aberrant migration along the thyroglossal duct (ie, lingual thyroid). A 54-year-old man with a 6-month history of visible asymptomatic swelling in the right submandibular region had ultrasonography and Tc-99m pertechnetate imaging.
authors.affiliation: Department of Special Surgical Pathology, University of Padova, Padova, Italy. mariarosa.pelizzo@unipd.it
authors.forename: Maria Rosa
authors.initials: MR
authors.lastname: Pelizzo
authors.forename: Francesca
authors.initials: F
authors.lastname: Torresan
authors.forename: Gaia
authors.initials: G
authors.lastname: Grassetto
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Briani
authors.forename: Maria Cristina
authors.initials: MC
authors.lastname: Marzola
authors.forename: Domenico
authors.initials: D
authors.lastname: Rubello
mesh_terms: D002828:Choristoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D013364:Submandibular Gland Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013961:Thyroid Gland / Q000473:pathology*; D014463:Ultrasonography