Lesson 2A (Part 2) Flashcards Preview

High Resolution > Lesson 2A (Part 2) > Flashcards

Flashcards in Lesson 2A (Part 2) Deck (29)
Loading flashcards...
1

Sialitis

Inflammation of a salivary gland or duct

2

What is the sonographic appearance of sialitis? (3)

1. Diffuse heterogeneity of the gland
2. Increased vascularity on power doppler
3. Chronic calcification centrally within
the submandibular gland 

3

Sialectasis

Dilation of a salivary duct

4

Parotitis

Inflammation of the parotid gland

5

What does sialectasis result from?

Duct obstruction of the parotid or submandibular glands associated with pain and swelling

6

Calculus formation

Calculi (stones) are formed in the salivary glands by the crystallisation of mineral salts in saliva

7

What can calculus formation cause?

Partially or completely block the ducts, leading to inflammation and swelling of the gland, a predisposition to infection and, in time, atrophy

8

What causes calculus formation?

It is unknown

9

Where do salivary gland stones occur?


About 8 in 10 salivary stones form in one of the submandibular glands

10

Where is rare for a stone to form?

In the sublingual gland

11

Where is calculus easily seen?

In the Stensen's duct

12

What are parotid duct calculi?

Rare

13

Pleomorphic salivary adenoma

Mixed benign tumours that consist of epithelial and connective tissue cells

14

Where do pleomorphic salivary adenomas mainly occur?

In the parotid gland

15

What is the most common tumour of the salivary glands?

Pleomorphic salivary adenomas

16

What is the sonograohpic appearance of parotid adenoma? (2)

1. Well circumscribed
2. Posterior enhancement

17

What are questions you should ask before scanning the glands?

If they have had any dental work done

18

What is a key landmark for the glands?

The angle of the mandible

19

Stensen's duct

Is a duct and the route that saliva takes from the major salivary gland, the parotid gland, into the mouth

20

What type of malignant tumours most commonly affect the parotid glands?

Carcinomas

21

Where does lymph spread with carcinoma?

To the cervical nodes

22

What is the sonographic appearance of a submandibular adenocarcinoma? (3)

1. Heterogeneous mass
- found in the anterior portion of the submandibular gland
2. Smooth walls
3. Internal vascularity

23

Sjogrens disease

Is an autoimmune disorder affecting the moisture producing exocrine glands
- eg. tears and saliva

24

What is the most prevalent rheumatic disorder?

Rheumatoid arthritis

25

What is the second most prevalent rheumatic disorder?

Sjogrens disease

26

What is a symptom of Sjogrens disease?

Dryness of eyes and mouth

27

What may occasionally develop in the parotid glands of Sjogren's patients?

MALT lymphoma

28

Where can simpe cysts occur? (2)

1. Parotid glands
2. Submandibular glands

29

What can cause simple salivary gland cysts to become more complicated? (3)

1. Haemorrhage
2. Trauma
3. Infection