Questions and CORRECT Answers
anatomic feature of the thyroid that helps facilitate identification of the recurrent laryngeal nerve
and superior parathyroid gland - CORRECT ANSWER - tubercle of Zuckerkandl
gold standard procedure for the diagnosis of thyroid nodules - CORRECT ANSWER -
FNA
Determining malignancy in Follicular or Hürthle cell neoplasms - CORRECT ANSWER -
pathologic evaluation looking for capsular or vascular invasion requiring at least partial thyroid
lobectomy. An FNA cannot effectively evaluate for capsular or vascular invasion in follicular
carcinoma.
what physical exam maneuver is very suggestive of a thyroglossal duct cyst? - CORRECT
ANSWER - Elevation of the mass with protrusion of the tongue
What is the Sistrunk procedure? - CORRECT ANSWER - excision of the entire
thyroglossal duct, the cyst, and the tract as it courses through the central portion of the hyoid
bone
The Recurrent Laryngeal Nerve is most vulnerable to iatrogenic injury during which step of a
thyroidectomy? - CORRECT ANSWER - dividing the ligament of berry
what is the arteria thyroidea ima? - CORRECT ANSWER - arttery that arises from the
aorta or innominate artery and courses anterior to the trachea to directly serve the inferior portion
of the thyroid gland
if the vessel to the thyroid passes anterior to the carotid artery, it is a _________, whereas if it
passes posterior to the carotid, it is the ______. - CORRECT ANSWER - middle thyroid
vein, inferior thyroid artery
, Injury to the recurrent laryngeal nerve will cause: - CORRECT ANSWER - hoarseness and
aspiration
Injury to the superior laryngeal nerve will cause: - CORRECT ANSWER - decreased
sensation of superior larynx and denervation to the cricothyroid muscle -> difficulty varying
pitch and projection
thyroid cancer progresses through the lymph node regions in which order? - CORRECT
ANSWER - 6 -> 2 -> 3 -> 4 -> 5
most T4 is made by the ________ while most T3 is made in the _________ - CORRECT
ANSWER - thyroid; periphery
Which has a longer half-life T3 or T4? - CORRECT ANSWER - T4
Which has a stronger binding affinity for the nuclear thyroid receptor, thus causing increased
gene transcription? T3 or T4? - CORRECT ANSWER - T3
what is the most sensitive method for detecting thyroid dysfunction? - CORRECT
ANSWER - TSH levels, tests are very sensitive/specific
use of measuring thyroglobulin? - CORRECT ANSWER - can be used as a tumor marker
for differentiated thyroid cancer in patients s/p total thyroidectomy
calcitonin serves as a very specific tumor marker for: - CORRECT ANSWER - medullary
thyroid cancer
________ is the most useful imaging test for evaluation of structural thyroid pathology -
CORRECT ANSWER - US