thyroid cancer Flashcards
ectopic thyroid tissue and/or cysts present along coarse of thyroglossal duct in the _____
midline
superior thyroid artery is the first branch of the ______
external carotid
inferior thyroid artery is a branch of the _______
thyrocervical trunk
inferior thyroid vein drains into ______
bracheocephalic vnein
superior thyroid vein drains _____of thyroid
superior pole
middle thyroid vein drains _____of thyroid
lateral aspect
does solitary nodule or multinodular goiter have a higher chance of malignancy?
solitary nodule
what is the most reliable method of dx’ing thyroid nodules/
fine needle aspiration biopsy
cold nodule on radionuclide scans indicates?
hypofunctioning
hot nodule on radionuclide scans indicates?
hyperfunctioning
is a cold or hot nodule more likely to be malignant?
cold nodule
psammoma bodies
papillary carcinoma
older patients, solitary mass, invasion into capsule, hematogenous spread
follicular carcinoma
NCCN guidelines recommend ____for follicular carcinoma
lobectomy
what test to do to determine if a hurthle cell carcinoma is malignant
resection
which type of thyroid cancer is a neuroendocrine tumor?
medullary thyroid cancer
markers to monitor for medullary thyroid cancer?
- calcitonin
2. CEA
what must you screen medullary thryoid cancer patients for b4 surgery (2)
- pheochromocytoma
2. primary hyperparathyroidism
dyspnea, dysphagia, hoarseness, 7th-8th decade - which thyroid cancer?
anaplastic carcinoma
tx of lymphoma?
radiation + chemo
what can you tx a person with after complete thyroidectomy?
post-op radioactive iodine tx to kill residual thyroid tissue
does lymph node removal improve survival
nope
what is the most common nerve injury in thyroidectomy?
external branch of superior laryngeal nerve
the most dreaded nerve injury in thyroidectomy?
recurrent laryngeal
can hyper or hypocalcemia result from thyroidectomy?
hypocalcemia
why can hypocalcemia occur after thyroidectomy?
due to devascularization of parathyroids
when is thyroid supplementation started after thyroidectomy?
after radioactive iodine tx (which occurs 1-3 months post surgery)
when to do fine needle aspiration biopsy?
when ultrasound shows mass >1 cm