title: Lipoid pneumonia: spectrum of clinical and radiologic manifestations.
abstract: OBJECTIVE
  Lipoid pneumonia results from accumulation of lipids in the alveoli and can be either exogenous or endogenous in cause based on the source of the lipid. Exogenous lipoid pneumonia is caused by inhalation or aspiration of animal fat or vegetable or mineral oil. Endogenous lipoid pneumonia is usually associated with bronchial obstruction. The purpose of this article is to review the pathogenesis and clinical and radiologic manifestations of exogenous and endogenous lipoid pneumonia.
  
  
  CONCLUSIONS
  The ability to recognize the radiologic manifestations of lipoid pneumonia is important because, in the appropriate clinical setting, these findings can be diagnostic.
authors.affiliation: Division of Diagnostic Imaging, Department of Diagnostic Radiology, The University of Texas M. D. Anderson Cancer Center, Unit 0371, 1515 Holcombe Blvd., Houston, TX 77030, USA. slbetancour@mdanderson.org
authors.forename: Sonia L
authors.initials: SL
authors.lastname: Betancourt
authors.forename: Santiago
authors.initials: S
authors.lastname: Martinez-Jimenez
authors.forename: Santiago E
authors.initials: SE
authors.lastname: Rossi
authors.forename: Mylene T
authors.initials: MT
authors.lastname: Truong
authors.forename: Jorge
authors.initials: J
authors.lastname: Carrillo
authors.forename: Jeremy J
authors.initials: JJ
authors.lastname: Erasmus
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D011017:Pneumonia, Lipid / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D013902:Radiography, Thoracic; D053120:Respiratory Aspiration; D012307:Risk Factors; D014057:Tomography, X-Ray Computed