Korean J Otolaryngol-Head Neck Surg.
2005 May;48(5):668-670.
Thyroid Hemiagenesis: Case Report
- Affiliations
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- 1Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea. diakonos@kornet.net
Abstract
- Thyroid hemiagenesis is a very rare abnormality, where one thyroid lobe fails to develop. Most patients diagnosed with the disease have associated thyroidal diseases. We report a 32-year-old female who presented with the left thyroid mass that had gradually increased in size over two years. Thyroid scan revealed the absence of right lobe and isthmus and a hypoactive nodule in the lower pole of left lobe. Ultrasonography confirmed the right lobe and the isthmus agenesis. The operative findings confirmed hemiagenesis of the right lobe and nodular hyperplasia in the left lobe. The purpose of this report is to present a case of nodular hyperplasia, where agenesis of the contralateral lobe was also observed.
