In this variant, lipid-laden macrophages and giant cells accumulate in the isolated bronchial airspace distal to the obstruction.
[citation needed] On CT, lipoid pneumonia appears as a "crazy paving" pattern, characterized by ground glass opacities with interspersed interlobular septal thickening.
Limited evidence suggest that the corticosteroids and possibly intravenous immunoglobulins may improve condition but in the case of exogenous type the stopping of the offending agent is the step that should be taken first.
[9] Endogenous lipoid pneumonia and non-specific interstitial pneumonitis has been seen prior to the development of pulmonary alveolar proteinosis in a child.
[6] Lipid pneumonia has been known to occur in underwater divers after breathing poorly filtered air supplied by a surface compressor lubricated by mineral oil.