title: Radionuclide imaging of dual ectopic thyroid in a preadolescent girl.
abstract: Ectopic thyroid is a congenital defect in which the thyroid gland is located away from the usual pretracheal location. Dual ectopic thyroid, which consists of two foci of thyroid tissue, is very rare. In this case dual ectopic thyroid with subclinical hypothyroidism in a 10-year-old-girl was reported. The absence of the thyroid gland in the pretracheal location was revealed by ultrasonography (USG). Two foci of ectopic thyroid tissue located at the base of the tongue and infrahyoid region were determined by Technetium-99m pertechnetate thyroid scintigraphy. It can be concluded that if the thyroid gland is not visible by USG, ectopic thyroid tissue should be evaluated with scintigraphy.
authors.affiliation: Ankara Training and Research Hospital, Clinic of Nuclear Medicine, Ankara, Turkey. E-ma-il: h_i_atilgan@yahoo.com.
authors.forename: Şule
authors.initials: Ş
authors.lastname: Yıldırım
authors.forename: Hasan İkbal
authors.initials: Hİ
authors.lastname: Atılgan
authors.forename: Meliha
authors.initials: M
authors.lastname: Korkmaz
authors.forename: Koray
authors.initials: K
authors.lastname: Demirel
authors.forename: Gökhan
authors.initials: G
authors.lastname: Koca