Presentation
Shortness of breath since 4 days.
Patient Data

Diffuse alveolar opacities are noted in bilateral mid and lower zones.





Diffuse widespread ground glass opacities with superimposed smooth interlobular septal thickening giving a typical appearance called "crazy paving pattern" which is characteristically seen in pulmonary alveolar proteinosis.
Case Discussion
Chest x-ray demonstrates small acinar opacities mimicking a miliary pattern.
CT scan of the chest shows widespread bilateral ground-glass opacities with superimposed smooth interlobular septal thickening referred to as crazy paving which is seen in pulmonary alveolar proteinosis.