Endo 40 - Imaging

Question 1

What is the preferred imaging study for the pituitary gland?

Answer 1

Sagittal MRI with and without gadolinium

Question 2

What is the classic visual field defect associated with pituitary macroadenomas?

Answer 2

Bitemporal hemianopsia

• mass effect upon optic chiasm

Question 3

What is the MC indication for parathyroid imaging?

Which imaging modality is used?

Answer 3

Primary hyperparathyroidism

Sestamibi scan

Question 4

Which nuclear medicine modality can be used to evaluate for hyperthyroidism?

Answer 4

Radioactive Iodine uptake test - po

Percent thryoid uptake measured (NL is 10-30% by 24 hours)

Question 5

Name the condition

Answer 5

Graves disease

• Highest uptake values

Question 6

Name the condition

Answer 6

Toxic multinodular goiter

Question 7

Name the condition

Answer 7

Toxic thyroid nodule

Question 8

Name the condition

Answer 8

Subacute thyroiditis

Question 9

What is the MC side effect of radioiodine tx for hyperthyroidism?

Answer 9

Hypothyroidism

Question 10

What is the imaging modality of choice to evaluate thyroid nodules?

Answer 10

Ultrasound

Question 11

What is the MC etiology of an adrenal incidentaloma on CT or MRI?

Answer 11

Non-hyperfunctioning adrenal adenoma