Acronym

COP - Cryptogenic Organising Pneumonia

Cryptogenic Organising Pneumonia

Reversible airway-centred inflammation; computed tomography shows consolidations and bronchial wall thickening

Expansion

Cryptogenic Organising Pneumonia

Purpose

Often responds to corticosteroids

Clinical Context

Cryptogenic organising pneumonia (formerly bronchiolitis obliterans with pneumonia). Associated with drugs, infections, connective tissue disease. High-resolution computed tomography shows consolidations, bronchial involvement. Often steroid-responsive.

  • Usual interstitial pneumonia
  • Bronchiolitis

Key Points

  • Cryptogenic organising pneumonia shows consolidations with bronchial involvement, tree-in-bud; mid or upper lobe; responds to steroids