Head And Neck Part 2

Question 1

Preferred modality for thyroid gland

Answer 1

Ultrasound

Question 2

It can be used to get high resolution images of thyroid gland

Answer 2

High frequency ultrasound

Question 3

It provides better characterization of nodules

Answer 3

Ultrasound

Question 4

It is a modality useful for large masses and to determine extent of intrathoracic extension

Answer 4

CT Scan

Question 5

Contraindication in using contrast material in CT scan

Answer 5

If patient is for radioactive iodine treatment. (It will cause a delay in the treatment)

Question 6

A classification system, based on breast lesions, used to facilitate characterization of whether a lesion is malignant or benign.

Answer 6

BIRADS

Question 7

Factors used in characterization of lesion based on BIRADS

Answer 7

Shape
Internal contents
Echogenicity
Halo
Margins
Calcification
Doppler

Question 8

If lesion grows across/along the plane of the lobe and is wider (or longer) than tall, is it benign or malignant? (Based on BIRADS)

Answer 8

BENIGN

Question 9

If lesion grows on extra planes and it becomes taller than wide, is it benign or malignant?

Answer 9

MALIGNANT

Question 10

Benign or malignant.

Internal contents are cystic

Answer 10

BENIGN

Question 11

Benign or malignant.

Echogenicity maybe hypo, hyper, and isoechoic

Answer 11

BENIGN

Question 12

Benign or malignant.

Echogenicity is markedly HYPOECHOIC or ISOECHOIC

Answer 12

MALIGNANT

Question 13

Benign or malignant.

Halo is 60-80% with basket pattern

Answer 13

Benign

Question 14

Benign or malignant.

Halo is 15%

Answer 14

MALIGNANT

Question 15

Benign or malignant.

Margins are poorly defined, irregular, spiculated

Answer 15

MALIGNANT

Question 16

Benign or malignant.

Margins are sharp, well-defined

Answer 16

Benign

Question 17

Benign or malignant.

Calcification is egg shell, large, and coarse in appearance

Answer 17

Benign

Question 18

Benign or malignant.

Calcification is interrupted eggshell in appearance with microcalcifications

Answer 18

MALIGNANT

Question 19

Benign or malignant.

Using Doppler, it appears hyperplastic nodules- hypovascular

Answer 19

Benign

Question 20

Benign or malignant.

In Doppler, well-differentiated thyroid CA- HYPERvascular with irregular tortuous vessels and AV shunting and anaplastic is HYPOvascular

Answer 20

MALIGNANT

Question 21

What is TIRADS

Answer 21

Thyroid Imaging, Reporting, And Data System

- more points for MALIGNANCY, means higher grade of lesion

Question 22

Criteria for malignancy (one point per criterion)

Clue: HI po! MAY PARTY IN my PLACE. THIS is the INVITATION CARD.

Answer 22

1. HYPOECHOGENICITY
2. Microcalcifications
3. Partially cystic nodule with eccentric location of fluid portion and lobulation of solid component
4. Irregular margins
5. Perinodular thyroid parenchyma invasion
6. Taller than wide
7. Intranodular vascularity
8. Cervical lymph node suspicious for malignancy

Question 23

Thyroiditis can be diagnosed or followed-up with what modality?

Answer 23

Ultrasound