title: Lipoid pneumonia in 53 patients after aspiration of mineral oil: comparison of high-resolution computed tomography findings in adults and children.
abstract: 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.
  
  
  METHODS
  The study included 35 children and 18 adults. Statistical comparisons of findings in the 2 age groups were performed using either Pearson chi2 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.
authors.affiliation: Fluminense Federal University, Rio de Janeiro, Brazil. edmarchiori@gmail.com
authors.forename: Edson
authors.initials: E
authors.lastname: Marchiori
authors.forename: Gláucia
authors.initials: G
authors.lastname: Zanetti
authors.forename: Claudia Mauro
authors.initials: CM
authors.lastname: Mano
authors.forename: Klaus Loureiro
authors.initials: KL
authors.lastname: Irion
authors.forename: Pedro Augusto
authors.initials: PA
authors.lastname: Daltro
authors.forename: Bruno
authors.initials: B
authors.lastname: Hochhegger
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D004643:Emollients; D005260:Female; D006801:Humans; D007223:Infant; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D008899:Mineral Oil; D015588:Observer Variation; D011017:Pneumonia, Lipid / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D004643:Emollients; D008899:Mineral Oil