Non Neoplastic Thyroid disease Flashcards
Ectopic or pathologic thyroid may seen anywhere along what pathway in adult life?
thyroglossal duct
Where does the thyroglossal duct begin?
Foramen cecum
Where is lingual thyroid?
Mass in foramen cecum of tongue
How may lingual thyroid present?
dysphagia, dyspnea, dysphonia
Is lingual thyroid rare or common?
Rare, but the most common location of functioning ectopic thyroid
Does lingual thyroid present in the presence or absence of cervical thyroid?
70% associated with abscence of thyroid
Where does thyroglossal duct cyst usually present?
midline between isthmus and hyoid
When does thyroglossal duct cyst usually present?
At birth or childhood
What risks are present with thyroglossal duct cyst usually present?
repeated infection. Big ones can cause obstruction
Are thyroglossal duct cysts hormonally active?
No
Describe substernal goiter. What is it? How does it present?
thyroid tissue that has “dropped” into anterior mediastinum; seen with cervical goiter.
May be symptomatic (dyspnea, dysphagia, hyperthyroid, hypothyroid) or not
A lateral aberrant thyroid is more likely to be what?
metastatic follicular thyroid carcinoma
Describe suprahyoid/infrahyoid thyroid?
Similar location to thyroglossal duct cyst. Often hypothyroid with absent cervical thyroid.
Describe struma cordis
Ectopic thyroid tissue in heart, usually right ventricle. Usually functions and is usually found by accident.
What is struma ovarii?
Monodermal teratoma of ovary, composed mainly (>50%) of adult thyroid tissue