title: Dual ectopic thyroid with normally located thyroid: a case report.
abstract: Dual ectopic thyroid is a rare presentation of thyroid ectopia. Only a few cases have been reported in the world literature. Dual ectopic thyroid in the presence of a normally located thyroid is even rarer. We report a case of dual ectopic thyroid in the lingual and submandibular areas in a seventeen-year-old female with hypoplastic thyroid gland in its normal location. The patient presented with a midline swelling at the base of tongue with dysphagia. Thyroid function test revealed primary hypothyroidism. Ultrasonography of the neck showed hypoplastic thyroid in its normal location. A thyroid scan with Technetium-99 m pertechnate showed two intensely hyperfunctioning foci of ectopic thyroid tissue at a higher level in the midline consistent with dual ectopic thyroid, one at the base of tongue and the other in submental region. No uptake was seen in the normal bed.
authors.affiliation: Department of Endocrinology, Gauhati Medical College, Guwahati, Assam 781032, India.
authors.forename: Bipul
authors.initials: B
authors.lastname: Kumar Choudhury
authors.forename: Uma
authors.initials: U
authors.lastname: Kaimal Saikia
authors.forename: Dipti
authors.initials: D
authors.lastname: Sarma
authors.forename: Mihir
authors.initials: M
authors.lastname: Saikia
authors.forename: Sarojini
authors.initials: S
authors.lastname: Dutta Choudhury
authors.forename: Santanu
authors.initials: S
authors.lastname: Barua
authors.forename: Swapna
authors.initials: S
authors.lastname: Dewri