醫學六：80題 ( 包括麻醉科,眼科,耳鼻喉科,婦產科,復健科等科目及其及相關臨床實例與醫學倫理 )題庫下載題庫

Lingual thyroid is a rare clinical entity of the oropharyngeal region caused by failure in descendence of thyroid gland to its normal position during embryogenesis. 

Female predominance(A) of occurrence is seen seven times higher than male counterpart. They may also occur in more than one ectopic site in the human body. Literature shows that about 70% of patients with ectopic thyroid are hypothyroid(B).

Technetium (Tc-99) scintigraphy is most important diagnostic technique employed in the identification of this ectopic thyroid.(C)

Treatment modalities employed in lingual thyroid depends on factors such as a general condition of patient, size, and degree of discomfort. Euthyroid patients and asymptomatic patients are followed-up regularly without any treatment.(D) Supplemental thyroxine should be given in symptomatic hypothyroid patients.

REF: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555932/