DDX:

Differential Diagnosis

• Apical interstitial lung disease
• Cavitary lung nodules
• Diffuse pulmonary hemorrhage
• Interstitial lung disease
• Interstitial lung disease with increased volume
• Miliary lung infiltrate

Patterns and Signs

• Overview
• Small airway disease(Air Trapping)
• Mosaic attenuation
• Ground Glass
• Interlobular Septal Thickening
• Intralobular Septal Thickening
• Honeycombing
• Parenchymal Bands