Key findings in alveolar proteinosis
- Crazy paving pattern: reticular pattern superimposed on ground glass opacification.
- Opacifications range from ground glass to consolidation.
On the left a typical case of alveolar proteinosis with extensive thickening of interlobular and intra-lobular septa. 
This is caused by the fact that the proteinacious material, which is removed from the alveolar space by macrophages is transported to the interstitium and thus leads to thickening of septa. #Clinical #Radiology #CTChest #AlveolarProteinosis #CrazyPaving #RadiologyAssistant