The crazy-paving pattern in exogenous lipoid pneumonia: CT-pathologic correlation.

Abstract

OBJECTIVE: The purpose of our study was to show a distinctive appearance of exogenous lipoid pneumonia on thin-section CT that has not, to our knowledge, been previously documented. CONCLUSION: On thin-section CT, exogenous lipoid pneumonia is revealed as patchy well-defined areas of ground-glass attenuation with superimposed septal thickening (crazy-paving pattern). Exogenous lipoid pneumonia should be included in the differential diagnosis when thin-section CT reveals a crazy-paving pattern.