a1 Department of Otolaryngology-Head and Neck Surgery, Medical School, Chonbuk National University, Chonju, Chonbuk, Korea
Objective: We report an extremely rare case of thyroid hemiagenesis with ectopic lingual thyroid.
Method: Case report and review of the world literature concerning thyroid hemiagenesis with ectopic lingual thyroid and heredity.
Results: Ectopic thyroid is an uncommon embryological aberration characterised by the presence of thyroid tissue in a site other than its usual, pretracheal location. The lingual thyroid is the most common manifestation of benign ectopic thyroid tissue, but is still a rare clinical entity. Thyroid hemiagenesis is also a very rare abnormality, in which one thyroid lobe fails to develop. We report a case of left thyroid hemiagenesis and goitre in the right lobe in a 26-year-old woman with an ectopic lingual thyroid.
Conclusion: To our knowledge, this is the first report in the world literature of thyroid hemiagenesis with ectopic lingual thyroid.
c1 Address for correspondence: Dr Yun Su Yang, Department of Otolaryngology-Head and Neck Surgery, Chonbuk National University, Medical School, Chonju, Chonbuk 560-182, South Korea. Fax: 82 63 250 1986 E-mail: firstname.lastname@example.org
Dr Y S Yang takes responsibility for the integrity of the content of the paper.
Competing interests: None declared