Chapter 312 BRONCHIECTASIS

Question 1

refers to an irreversible airway dilation that involves the lung in either a focal or a diffuse manner

Answer 1

Bronchiectasis

Question 2

the most common form of bronchiectasis

Answer 2

TUBULAR

Question 3

bronchiectasis more pronounced involvement of the upper lung fields:

Answer 3

Cystic fibrosis

Post-radiation fibrosis

Question 4

bronchiectasis prediminant at lower lobes

Answer 4

1. chronic recurrent aspiration (e.g., due to esophageal motility disorders like those in scleroderma),
2. end- stage fibrotic lung disease (e.g., traction bronchiectasis from idiopathic pulmonary fibrosis)
3. recurrent immunodeficiency-associated infection (e.g., hypogammaglobulinemia).

Question 5

bronchiectasis prediminant at mid lung fields

Answer 5

1. Bronchiectasis resulting from infection by nontuberculous mycobacteria (NTM), most commonly the Mycobacterium avium-intracellulare complex (MAC)
2. dyskinetic/ immotile cilia syndrome.

Question 6

bronchiectasis prediminant at central airways

Answer 6

1. allergic bronchopulmonary aspergillosis (ABPA)–>which is an immune-mediated reac- tion to Aspergillus damages the bronchial wall
2. Congenital causes of central airway–predominant bronchiectasis resulting from cartilage deficiency include tracheobronchomegaly (Mounier-Kuhn syndrome) and Williams-Campbell syndrome.

Question 7

___% of bronchiectasis sec to idiopathic disease

Answer 7

25-50%