thyroid imaging Flashcards
1
Q
when to image when suspect hypothyroidism
A
no role for imaging
2
Q
best test for order for hypeorthyroid patient?
A
nuclear medicine iodine uptake and scan
3
Q
normal radioactive iodine uptakes are ______
A
10-25%
4
Q
prominent thyroid without focal nodule
A
diffuse goiter
5
Q
when to image a goiter
A
don’t need to image goiters b/c cancer usu presents as nodules
6
Q
etiologies for distinct nodules (3)
A
- colloid cyst
- benign adenoma
- malignancy (papillary or follicular)
7
Q
what to order to work up different thyroid morphologies
A
ultrasound
8
Q
what test can differentiate benign and malignant nodules?
A
none
9
Q
when to do FNA after positive US?
A
- microcalcifications on ultrasound
2. nodules >2.5 cm
