Head And Neck Part 2 Flashcards Preview

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Flashcards in Head And Neck Part 2 Deck (23):
1

Preferred modality for thyroid gland

Ultrasound

2

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

High frequency ultrasound

3

It provides better characterization of nodules

Ultrasound

4

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

CT Scan

5

Contraindication in using contrast material in CT scan

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

6

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

BIRADS

7

Factors used in characterization of lesion based on BIRADS

Shape
Internal contents
Echogenicity
Halo
Margins
Calcification
Doppler

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)

BENIGN

9

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

MALIGNANT

10

Benign or malignant.
Internal contents are cystic

BENIGN

11

Benign or malignant.

Echogenicity maybe hypo, hyper, and isoechoic

BENIGN

12

Benign or malignant.

Echogenicity is markedly HYPOECHOIC or ISOECHOIC

MALIGNANT

13

Benign or malignant.

Halo is 60-80% with basket pattern

Benign

14

Benign or malignant.

Halo is 15%

MALIGNANT

15

Benign or malignant.

Margins are poorly defined, irregular, spiculated

MALIGNANT

16

Benign or malignant.

Margins are sharp, well-defined

Benign

17

Benign or malignant.

Calcification is egg shell, large, and coarse in appearance

Benign

18

Benign or malignant.

Calcification is interrupted eggshell in appearance with microcalcifications

MALIGNANT

19

Benign or malignant.

Using Doppler, it appears hyperplastic nodules- hypovascular

Benign

20

Benign or malignant.

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

MALIGNANT

21

What is TIRADS

Thyroid Imaging, Reporting, And Data System
- more points for MALIGNANCY, means higher grade of lesion

22

Criteria for malignancy (one point per criterion)

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

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

23

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

Ultrasound