Objective: To evaluate the high-resolution computed tomography (HRCT) findings in 53 patients with exogenous lipoid pneumonia and to compare the imaging features of adults and children.
Materials and Methods: The study included 35 children and 18 adults. Statistical comparisons of findings in the 2 age groups were performed using either Pearson χ2 or Fisher exact test, as appropriate, at 5% significance level.
Results: The main HRCT findings included air-space consolidation, ground glass attenuation, air-space nodules, and crazy-paving pattern. Abnormalities predominated in the posterior regions of the right lung. The right lower lobe was most likely to show severe involvement.
Conclusions: The presence of air-space consolidation, the involvement of upper right lobe, and the central and posterior distribution of the lesions were more common in children, whereas the crazy-paving pattern and random localization were significantly more frequent in adults. The other findings were not different between the 2 groups.
From the *Fluminense Federal University; †Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; and ‡The Liverpool Heart and Chest Hospital, Liverpool, United Kingdom.
Received for publication March 14, 2009; accepted April 9, 2009.
Reprints: Edson Marchiori, MD, PhD, Rua Thomaz Cameron, 438. Valparaiso, CEP 25685.120. Petrópolis, Rio de Janeiro, Brazil (e-mail: firstname.lastname@example.org).