Table 1

Criteria for the definition of fibrosing ILD

Evidence of fibrosing ILD
Lung biopsyHRCT scan

  • Evidence of interstitial fibrosis

  • Evidence of lobular remodelling

  • Honeycombing

  • NSIP (fibrosing)

  • UIP

  • Traction bronchiectasis

  • Architectural distortion

  • Honeycombing

  • Reticular abnormality

  • Cystic abnormalities*

  • *Not commonly accepted as a criterion for fibrosis in adult ILD