Crazy paving

Crazy paving, also crazy paving pattern, is a radiologic finding with a longer differential diagnosis.

File:Nice Paving (6668455123).jpg

Crazy paving. (WC/Josh Graciano)

File:Crazy paving pattern on chest CT scan.jpg

Chest CT showing crazy paving. (WC/Verma)

The classic cause from the pathology perspective is:

• Pulmonary alveolar proteinosis.

A more general DDx is:

• Diffuse alveolar damage (acute respiratory distress syndrome, acute interstitial pneumonia).
• Pulmonary alveolar proteinosis.
• Bronchopneumonia.

See also

• Granuloma.