Imaging description The classic appearance of pulmonary alveolar proteinosis is symmetric, predominately perihilar, ground-glass opacity with intralobular linear opacities and interlobular septal thickening (“crazy-paving” pattern) [1–3] (Figures 19.1–19.4). There is often geographic sparing of secondary lobules and periphery of the lung. Consolidation can be seen in advanced cases. Importance Pulmonary alveolar proteinosis is one of several conditions associated with a crazy-paving pattern on high-resolution CT. Knowledge of the different causes of this pattern can aid in preventing diagnostic errors .
|Original language||English (US)|
|Title of host publication||Pearls and Pitfalls in Thoracic Imaging|
|Subtitle of host publication||Variants and Other Difficult Diagnoses|
|Publisher||Cambridge University Press|
|Number of pages||2|
|State||Published - Jan 1 2011|
ASJC Scopus subject areas