Thyroid Nodules

Question 1

What % of thyroid nodules will ultimately be benign?

Answer 1

95%

Question 2

What are the benign differentials for a thyroid nodule (4)

Answer 2

1) Cyst
2) Colloid nodule
3) Benign follicular adenoma
4) Hyperplastic nodule

Question 3

What’s the most common thyroid cancer?

Answer 3

Papillary

Question 4

How long should papillary thyroid cancer be monitored for after treatment? What’s the choice for monitoring?

Answer 4

TSH levels every 6 months for 5 years

Question 5

Follicular thyroid carcinoma spreads via lymphatics / haematogenous?

Answer 5

Haematogenously (papillary is lymphatics)

Question 6

Medullary thyroid carcinoma is a cancer of which cells?

Answer 6

PARA-follicular cells (not follicular cells

Question 7

Medullary thyroid cancer is associated with what genetic conditions?

Answer 7

MEN / MEN2a

Question 8

What needs to be measured when medullary thyroid cancer is suspected?

Answer 8

24-hour urinary metanephrines as there is a strong association with phaeochromocytoma

Question 9

Thyroid lymphoma needs histology / cytology for diagnosis?

Answer 9

Histology

Question 10

Thyroid nodules should / should not move upon swallowing?

Answer 10

Should move - if it doesn’t move it’s unlikely to be thyroid

Question 11

T/F: Pain is a common feature of thyroid nodules and if present is typically due to presence of…

Answer 11

Pain is uncommon, if present it is often a cyst (often in the thyroglossal duct)

Question 12

The thyroid is invested in which layer of fascia?

Answer 12

Pre-tracheal

Question 13

Multinodular goitres often require treatment, T/F?

Answer 13

False