Table 1. Diagnosis of idiopathic pulmonary fibrosis based on patterns discovered in high-resolution computed tomography (HRCT) and histopathology investigations
HRCT patternHistopathology pattern
UIPProbable UIPPossible UIPNon-classifiable fibrosisNot UIP
UIPYesYesYesYesNo
Possible UIPYesYesProbableProbableNo
Not UIPPossibleNoNoNoNo
  • UIP: usual interstitial pneumonia.