classified under chronic suppuirative lung diseases characterised morphologically by the abnormal dilatation of bronchi and bronchioles, and clinically by recurrent bronchial infection, and chronic cough (often with sputum).

can be localised or diffuse

Permanent dilatation and infection of bronchi

mucous stasis, ulceration → Obstruction,

chronic necrotizing infection → Destruction of bronchial wall.

Demographics

• anyone at any age, but more commonly in rural and remote Indigenous communities and in less affluent communities

Aetiology

<aside> 💡 majority idiopathic or result of previous infection., often pneumonia in childhood

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Secondary: to COPD (mucous), Tumor (obstructing distal bronchus), foreign body, atelectasis etc.

Primary (congenital): Cystic fibrosis, recurrent infections in immunodeficiency disorders, Kartagener’s (immotile cilia syndrome)

• Common
  • severe respiratory infection
  • asthma
  • COPD
  • cystic fibrosis
• Uncommon
  • aspiration
  • primary ciliary dyskinesia
  • IBD
  • CT disease
  • radiotherapy for breast cancer