Radiology of the Maxillary Antrum

Question 1

What is the development of the maxillary sinus proportional to?

Answer 1

• The growth of the facial bones

Question 2

What happens when there is hypoplasia of the maxillary antrum occurs?

Answer 2

• Reduction in maxillary sinus size and enlargement of the nasal cavity
• Increases height of the alveolar process
• Narrow sinus discharge increasing risk of infection

Question 3

What cells are the paranasal sinuses lined with?

Answer 3

Respiratory mucosa, pseudostratified columnar epithelium with cilia

Question 4

What is mucus transported through to get into the nose?

Answer 4

The ostium

Question 5

What indicates a healthy maxillary sinus on PA radiographs?

Answer 5

Bony outline of the maxillary sinus should be continuous and of uniform thickness

Question 6

Are X rays indicated for sinusitis?

Answer 6

• No, it is a clinical diagnosis
• Management is by medication

Question 7

What does acute maxillary sinusitis develop from and what are the symptoms?

Answer 7

URTI

• Facial pain
• Feeling unwell
• Raised temperature
• Nasal voice

Question 8

What is the main malignant tumour of the maxillary sinus?

Answer 8

• Maxillary carcinoma (squamous cell carcinoma)