FAT ABSORPTION AND LUNG OIL

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Abstract
The lungs of normal animals and of normal animals fed with oil have been examined for the presence of oil. Frozen sections stained with Sudan IV and haematoxylin reveal Sudan stained intracellular granules and interstitial or intravascular oil globules in alveolar walls. In general these oil globules are larger and more numerous in the oil fed animals than in the normal controls. In the lungs of a considerable number of the animals absorbing fat, patchy areas of oil are found that resemble pulmonary fat embolism. Evidence is presented to show that the finding is neither a histological artefact, nor is it due to oil aspiration. Lung fat determinations give values higher in lungs showing marked oil deposits, but as a rule they remain within the normal range.

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