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3 out of 6

Bronchiectasis is most common in which lobe: (AIIMS May 2009)

A Right upper lobe

B Right middle lobe

C Left upper lobe

D Left lower lobe

Ans. D

Left lower lobe

1). Pathology Chronic infection of the bronchi and bronchioles leading to permanent dilatation of these airways.

2). Bronchiectasis is commonly affects lower lobe bronchi, the left side being affected more frequently than right. i.e. Left lower lobe bronchi most common involved.

3). Bronchiectasis is not a premalignant condition


1). Congenital:

a. Young's syndrome Q

b. Primary ciliary dyskinesia Q

Kartagener syndrome. Q Triad:

i. Sinusitis

ii. Bronchiectasis

iii. Situs inversus

Additional feature: infertility

2). Post-infection:

a. Measles

b. Pertussis

c. Bronchiolitis

d. Pneumonia

e. TB

f. HIV.

Main organisms:

1). H. influenzaeQ;

2). Strep. pneumoniae Q;

3). Staph. aureus Q;

4). Pseudomonas aeruginosa Q.

3). Bronchial obstruction (tumour, foreign body)

4). Allergic bronchopulmonary aspergillosis (ABPA) (Proximal bronchiectasis)Q

5). Hypogammaglobulinemia

6). Rheumatoid arthritis

7). Ulcerative colitis

8). Idiopathic.

Extra Edge: Traction bronchiectasis refers to dilated airways arising from parenchymal distortion as a result of lung fibrosis (e.g., postradiation fibrosis or idiopathic pulmonary fibrosis). (Ref. Hari-18th ed., Pg-2143)