Parotid Tumour Flashcards Preview

Year 3 - Neck Lumps > Parotid Tumour > Flashcards

Flashcards in Parotid Tumour Deck (15)
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1

what is the most common type of tumour of the parotid gland?

pleomorphic adenomas
they are benign
("mixed tumours" composed of a mixture of stromal and epithelial elements)

2

Warthin's tumour makes up 5-10% of all salivary gland tumours - what is it?

Warthin's tumour is a benign cystic epithelial tumour.

3

Where does the parotid duct (stensen's duct) open?

parotid duct opens opposite the 2nd upper molar

4

What is the neurovasculature of the parotid gland?

- glossopharyngeal nerve
- blood supply from the transverse facial artery

5

What does the parotid gland secrete?

- watery, serous secretions

6

what structures lie close to the parotid?

- facial nerve runs through it
- close to terminal branches of carotid artery
- close to auricular nerve

7

What % of all salivary gland tumours occur in the parotid gland?

80%

8

What % of salivary gland tumours are benign?

20%

9

Where in the parotid to pleomorphic adenomas occur?
Who is affected?

tail
more common in females
40's - 50's age group

10

How do pleomorphic adenomas present?

Presents as a slow growing painless lump - they are benign but 5% progress to become malignant

11

what % of parotid tumours are malignant?

20% of parotid tumours are malignant

12

what type of tumour can cause bell's palsy?

malignant

13

What is the most common malignant cancer of the salivary glands

mucoepidemoid carcinoma

14

How do warthin's tumours present?

- painless slow growing lump
- bilateral in 10% of cases

15

How are parotid tumours invx?

fine needle aspiration
- USS or MRI