parathyroid Flashcards
1
Q
most common cause of hyperparathyroidism?
A
hyperfunctioning adenoma (85%)
2
Q
what two factors does sestamibi parathyroid imaging depend on?
A
mitochondrial density and blood flow
3
Q
What lesions in the head and neck like to take up sestamibi besides parathyroid adenomas?
A
thyroid nodules
head and neck cancers
lymphadenopathy
brown fat
4
Q
What tracers could be used in a dual tracer technique in parathyroid imaging?
A
- Tc99 sestamibi or 201 thallium chloride
2. I-123 or pertechnetate
5
Q
Should you see physiologic uptake in lymph nodes on a sestamibi scan?
A
no! if you see sestamibi uptake in lymph nodes you should be highly suspicious of cancer
6
Q
if you see breast uptake on a sestamibi scan…
A
it’s breast cancer
Breast Specific Gamma Imaging (BSGI) also uses sestamibi to look for breast cancer
