- Rare disorder in which lipoproteinaceous material accumulates in alveoli due to altered surfactant homeostasis
- Male preponderance
- Associated with smoking
Chest radiographic findings are often inconclusive. HRCT demponstrates a combination of ground-glass and interlobular opacities, often in a crazy-paving pattern with geographic involvement.
Differential for Crazy Paving - ground glass opacities and septal thickening