Chapter 1 Focal Lung Diseases.- Ch 1-1 Nodule.- Ch 1-1a Solid nodule.- Ch 1-1b Ground-glass opacity nodule.- Ch 1-2 Mass.- Ch 1-3 Consolidation.- Ch 1-3a Lobar consolidation.- Ch 1-3b Nodular consolidation.- Ch 1-4 Reticular or linear pattern.- Ch 1-5 Comet tail sign.- Ch 1-6 CT halo sign.- Ch 1-7 Galaxy sign.- Ch 1-8 Reversed halo sign.- Ch 1-9 Tree-in-bud sign.- Ch 1-10 Gloved-finger or tooth-paste sign.- Ch 1-11 Decreased opacity with cystic airspace.- Ch 1-11a Decreased opacity with cystic airspace wall, cavity.- Ch 1-11b Decreased opacity with cystic airspace wall, cyst.- Ch 1-12 Decreased opacity without cystic airspace.- Ch 1-12a Decreased opacity without cystic airspace, mosaic perfusion.- Ch 1-12 b Decreased opacity without cystic airspace, airway disease.- Ch 1-12 Air crescent sign.- Ch 1-13 signet ring sign.- Chapter 2 Diffuse Lung Diseases.- Ch 2-1 Interlobular septal thickening.- Ch 2-1a Smooth thickening.- Ch 2-1b Nodular thickening.- Ch 2-2 Intralobular lines.- Ch 2-2a Intralobular lines with reticulation.- Ch 2-2b Intralobular lines with interlobular septal thickening.- Ch 2-2c Intralobular lines with ground-glass opacity.- Ch 2-3 Honeycombing.- Ch 2-3a Honeycombing with subpleural or basal predominance.- Ch 2-3b Honeycombing with upper lung zone predominance.- Ch 2-4 Small nodular or micronodular pattern.- Ch 2-4a Small nodular lesions with centrilobular distribution.- Ch 2-4b Small nodular lesions with perilymphatic distribution.- Ch 2-4c Small nodular lesions with random (military) distribution.- Ch 2-4d Multiple nodular or mass or mass-like pattern.- Ch 2-5 Ground-glass opacity with reticulation.- Ch 2-5a Ground-glass opacity with reticulation and traction bronchiectasis.- Ch 2-5b Crazy-paving appearance.- Ch 2-6 Ground-glass opacity without reticulation.- Ch 2-6a Ground-glass opacity without reticulation and peripheral or patchy distribution.- Ch 2-6b Ground-glass opacity without reticulation and small nodules.- Ch 2-6c Ground-glass opacity without reticulation and diffuse distribution.- Ch 2-7 Consolidation.- Ch 2-7a Consolidation with diffuse distribution.- Ch 2-7b Consolidation with subpleural distribution.- Ch 2-8 Decreased opacity with cystic airspace.- Ch 2-8a Decreased opacity with cystic airspace and cystic wall (cavity and cysts).- Ch 2-8a1 Decreased opacity with cystic airspace and cystic wall, cavities.- Ch 2-8a2 Decreased opacity with cystic airspace and cystic wall, cysts.- Ch 2-8b Decreased opacity without cystic airspace but without wall (emphysema).- Ch 2-9 Decreased opacity without cystic airspace, mosaic attenuation.- Ch 2-9a Decreased opacity without cystic airspace, vascular.- Ch 2-9b Decreased opacity without cystic airspace, obstructive airway diseases.- Ch 2-10 Decreased opacity without cystic airspace, airway diseases._