Fig. 1From: Cyclophosphamide for interstitial lung disease-associated acute respiratory failure: mortality, clinical response and radiological characteristicsExamples of CT coarseness sore. a Coarseness score 1 (fine intralobular fibrosis); b coarseness score 2 (microcystic reticular pattern comprising air spaces smaller than or equal to 4 mm in diameter); c coarseness score 3 (macrocystic reticular pattern comprising air spaces larger than 4 mm in diameter)Back to article page