Table 1. Diagnosis of idiopathic pulmonary fibrosis based on a combination of high-resolution computed tomography (HRCT) and histopathology patterns
HRCT patternHistopathology pattern
UIPProbable UIPPossible UIPNon-classifiable fibrosisNot UIP
UIPYesYesYesYesNo
Possible UIPYesYesProbableProbableNo
Not UIPPossibleNoNoNoNo

  • UIP: usual interstitial pneumonia. Modified from [1, 76] with permission from the publisher.