Radiology Cases

Question 1

CT describes a rount, ovoid or fusiform nodule/mass. It is branching, forming a Y or V shape, simiilar to bronhci distribution. What is it?

Answer 1

Bronchial atresia

Question 2

CT describes an area of disorganized pulmonary parenchyma without normal arterial or bronchial communications. It is located posteriorly. What is it?

Answer 2

Sequestration

Question 3

What is the blood supply for bronchial sequestration?

Answer 3

Systemic blood supply. Vsible vessel coming from aorta.

Question 4

CT shows thickening of anterior and lateral trachea with posterior thickening. What is it?

Answer 4

Relapsing polychondritis.

Question 5

From what layer of the trachea does an adenoid cystic carcinoma originate? What direction does it grow?

Answer 5

Originates from the submocosal layer, grows outward.

Question 6

From what layer of the trachea does a squamous cell carcinoma originate? Which direction goes it grow?

Answer 6

Originates from mucosal layer. Grows inward.

Question 7

4 differential diagnoses for circumferential thickening of trachea?

Answer 7

• Rhinoscleroma
• TB
• Wegner’s
• Amyloid

Question 8

2 differentials for calcification of the trachea

Answer 8

• Amyloid

- Tracheobronchopathia Osteochondroplastica

Question 9

2 differentials for ulcerations fo the trachea

Answer 9

• TB

- Wegner’s

Question 10

3 differentials for thickening of the trachea that spares the posterior wall?

Answer 10

• Relapsing Polychondritis
• Tracheomalacia
• Tracheobronchopathica Osteochondroplastica

Question 11

3 differentials for calcified lymph nodes

Answer 11

• Granulomatous infections
• Sarcoid
• Silicosis
• Treated hodgkin’s lymphoma