title: A case of mediastinal ectopic thyroid presenting with a paratracheal mass.
abstract: Mediastinal ectopic thyroid is a very rare condition, with few reported cases in the literature and no reported cases in Korea. This report describes an asymptomatic 65-year-old man with a right paratracheal mass compressing the superior vena. Additionally, the epidemiology, clinical manifestation, diagnosis, and management of mediastinal ectopic thyroids are discussed. A mediastinal ectopic thyroid should be considered in the differential diagnosis of all mediastinal masses. Surgical excision is recommended for both the diagnosis and treatment of this condition, because of its potential for malignancy and compression of mediastinal structures. This case demonstrates the clinical importance of mediastinal etopic thyroid.
authors.affiliation: Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Eun
authors.initials: E
authors.lastname: Roh
authors.forename: Eun Shil
authors.initials: ES
authors.lastname: Hong
authors.forename: Hwa Young
authors.initials: HY
authors.lastname: Ahn
authors.forename: So-Yeon
authors.initials: SY
authors.lastname: Park
authors.forename: Ho Il
authors.initials: HI
authors.lastname: Yoon
authors.forename: Kyong Soo
authors.initials: KS
authors.lastname: Park
authors.forename: Young Joo
authors.initials: YJ
authors.lastname: Park
mesh_terms: D000368:Aged; D002828:Choristoma / Q000175:diagnosis*; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008477:Mediastinal Diseases / Q000175:diagnosis*; D013961:Thyroid Gland
keywords: Mediastinum; Thyroid dysgenesis