Bronchiectasis is abnormal and permanent dilatation of the central and medium-sized airways. This leads to impaired clearance of bronchial secretions with secondary bacterial infection and bronchial inflammation.
|Changes in bronchiectasis|
Causes of bronchiectasis:
In children:1. Cystic fibrosis
|Changes in airway|
In young adults:1. Pulmonary tuberculosis
2. Inhalation of foreign body
In adults:1. Pulmonary tuberculosis
2. Ciliary dysfunction syndrome
3. As a complication of Pneumonia, where there is retention of sputum leading to lobar collapse and bronchiectasis.