Bronchiectasis is a suppurative lung disease characterised by the presence of permanently and abnormally widened (dilated) bronchial airways. Bronchiectasis may be the end result of a number of etiological processes.
- primary ciliary dyskinesia (including the immotile cilia syndrome)
- cystic fibrosis
- congenital hypogammaglobulinaemia
- infections in childhood, such as whooping cough, pneumonia or measles
- localised disease such as a foreign body, a bronchial adenoma or tuberculosis
- allergic bronchopulmonary aspergillosis – this causes proximal bronchiectasis