title: Thyroid tissue as a submandibular mass: a case report.
abstract: Ectopic thyroid gland is a rare phenomenon that appears most frequently in the cervical midline and very rarely in other sites such as the submandibular region. This article reports a painless, non-tender and firm thyroid tissue mass in the right submandibular region of a 29-year-old female patient. Physicians should consider ectopic thyroid tissue as a differential diagnosis of submandibular swellings and be aware that this ectopic gland is the only functional thyroid tissue in 70% of cases.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Mashhad Dental Faculty, Mashhad, Iran.
authors.forename: Faramarz
authors.initials: F
authors.lastname: Babazade
authors.forename: Hamed
authors.initials: H
authors.lastname: Mortazavi
authors.forename: Hamed
authors.initials: H
authors.lastname: Jalalian
authors.forename: Ehsan
authors.initials: E
authors.lastname: Shahvali
mesh_terms: D000328:Adult; D002828:Choristoma / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009333:Neck / Q000473:pathology*; D013961:Thyroid Gland