HRCT DILD Lubljana 2009

HRCT in Diffuse Interstitial Lung DiseaseGround-glass opacityDef n : Hazy increased attenuation of thelung, but with preservation of bronchialand vascular markingsHRCT in Diffuse Interstitial Lung DiseaseGround glass opacity• Subacute hypersensitivity pneumonitis• Nonspecific interstitial pneumonia• Collagen vascular disease• Lymphocytic interstitial pneumonia• Drug reactionHansell DM et al. Fleischner Society: Glossary of terms forThoracic Imaging. Radiology 2008HRCT in Diffuse Interstitial Lung DiseaseNon-specific Interstitial Pneumonia (NSIP)HRCT in Diffuse Interstitial Lung Disease“Crazy-paving” patternDef n :A network of asmooth linear patternsuperimposed on anarea of ground-glassopacityHansell DM et al. Fleischner Society: Glossary of terms for Thoracic Imaging. Radiology 2008HRCT in Diffuse Interstitial Lung DiseaseCrazy-paving pattern (Alveolar proteinosis)HRCT in Diffuse Interstitial Lung DiseaseAir-space consolidationDef n : Increased attenuationof the lung, caused by fillingof air spaces by fluid, cells,or other material “…Predominant lesion in 4 chronicdiseases:• Cryptogenic organizing pneumonia• Chronic eosinophilic pneumonia• Bronchoalveolar cell carcinoma• Parenchymal lymphomaHansell DM et al. Fleischner Society: Glossary of terms for Thoracic Imaging. Radiology 20086