[Exogenous lipoid pneumonia: a simple diagnosis?].

Exogenous lipoid pneumonia is a poorly known pathology. It results from aspiration of mineral, vegetal or animal oily substances. It is usually iatrogenic and clinical presentation is not specific. Main investigations which allow the diagnosis are: tomodensitometry which is the reference diagnosis modality, chest X-Ray which may be used for follow-up and MR which may contribute to the diagnosis. The treatment is not systematized. Stopping intake of the causal agent is essential. Some patients are treated with success by broncho-alveolar lavage, corticotherapy and oxygenotherapy. An exogenous lipoid pneumonia must be considered in all cases of non resolving pneumonia.