Salivary Gland Tumors

Question 1

What is the most common SGT?

Answer 1

Pleomorphic adenoma

Question 2

A pleomorphic adenoma is most often found in what gland? It is the most common tumor of what glands?

Answer 2

Parotid gland

Most common tumor in the minor salivary glands

Question 3

Where do most cases of pleomorphic adenoma occur in the mouth?

Answer 3

Posterior hard palate and upper lip

Question 4

Is a pleomorphic adenoma attached?

Answer 4

No, freely movable

Question 5

What cells are found in the epithelium of pleomorphic adenoma?

Answer 5

Duct cells and myoepithelial cells

Question 6

The stroma of pleomorphic adenoma can best be described as?

Answer 6

Abundant and varied

Question 7

Are pleomorphic adenomas encapsulated?

Answer 7

Poorly

Question 8

How do you treat pleomorphic adenoma?

Answer 8

Surgical excision with rim of adjacent normal tissue in the major glands and palate

At other oral sites, enucleation

Question 9

The recurrence rate for pleomorphic adenoma is higher in MSGs or parotid?

Answer 9

Parotid

Question 10

Malignant transformation occurs in what percentage of pleomorphic adenomas?

Answer 10

Less than 5%

Question 11

Canalicular adenoma occurs almost exclusively in what glands?

Answer 11

MSGs

Question 12

Where do most canalicular adenomas occur in the mouth?

Answer 12

Upper lip

Question 13

At what age do people get canalicular adenoma?

Answer 13

Above 60

Question 14

What color is a canalicular adenoma?

Answer 14

Normal colored or bluish

Question 15

Is the recurrence rate higher for canalicular adenoma or pleomorphic adenoma?

Answer 15

Pleomorphic adenoma

Question 16

In what gland is Warthin’s tumor very rare?

Answer 16

MSGs

Question 17

Who is most likely to get Warthin’s tumor? It is the only salivary tumor associated with increased risk from ____?

Answer 17

Men over 50

Smoking

Question 18

What 4 benign, normal colored well defined enlargements are encapsulated?

Answer 18

Neurilemoma
Some neurofibromas
Leiomyoma
Benign salivary gland tumors (incomplete)

Question 19

Malignant salivary gland tumors make up what percentage of oral malignancies?

Answer 19

10%

Question 20

What is the most common type of malignant salivary tumor in the US?

Answer 20

Mucoepidermoid carcinoma

Question 21

Mucoepidermoid carcinoma most commonly occurs in what gland? What oral site?

Answer 21

Parotid

Hard palate

Question 22

Minor gland mucoepidermoid carcinomas can be mistaken for?

Answer 22

Mucoceles

Question 23

How do you treat low grade and high grade mucoepidermoid carcinoma?

Answer 23

Low grade excise with narrow border

High grade excise with wide margin

Question 24

50% of adenoid cystic carcinomas occur in what gland? What oral site?

Answer 24

Minor salivary glands

Palate

Question 25

Adenoid cystic carcinoma is the most common malignancy of what gland?

Answer 25

Submandibular

Question 26

In adenoid cystic carcinoma the ____ year survival rate is worse than the ____ year survival rate

Answer 26

20 year is worse than 5

Question 27

The prognosis for adenoid cystic carcinoma is worst for tumors arising in what two areas?

Answer 27

Maxillary sinus and submandibular gland

Question 28

Who typically gets polymorphous adenocarcinoma?

Answer 28

Women over 50

Question 29

Where doe most polymorphous adenocarcinomas occur?

Answer 29

In the palate, buccal mucosa, and upper lip