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[Fat embolism with lung hemorrhage].

M Froidure1, N Baudouin, M Merati

  • 1Service de Pneumologie et Réanimation Respiratoire, Hôpital du Bocage et Université de Bourgogne, CHU de Dijon.

Revue Des Maladies Respiratoires
|April 2, 2002
PubMed
Summary

A rare case of post-traumatic fat embolism caused alveolar hemorrhage in a young woman. Prompt diagnosis using bronchoalveolar lavage confirmed lipid droplets, leading to a favorable outcome.

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Area of Science:

  • Pulmonary Medicine
  • Trauma Surgery
  • Pathology

Background:

  • Fat embolism syndrome (FES) is a rare but serious complication following trauma or surgery.
  • Alveolar hemorrhage is a less common manifestation of FES, often presenting with respiratory distress.
  • Early diagnosis and management are crucial for improving patient outcomes in FES.

Observation:

  • A 21-year-old female presented with acute hypoxemia and bilateral pulmonary infiltrates four days after a closed tibial fracture.
  • Differential diagnoses including pulmonary thromboembolism and acute pulmonary edema were excluded.
  • Infectious and immunologic causes were also ruled out, prompting further investigation into the etiology.

Findings:

  • Bronchoalveolar lavage (BAL) was performed, revealing alveolar hemorrhage.

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  • Microscopic examination of BAL fluid showed lipid droplets within macrophages, confirmed by Oil Red O staining.
  • These findings established the diagnosis of fat embolism as the cause of alveolar hemorrhage.

    • Implications:

    • This case highlights the importance of considering fat embolism syndrome in patients with unexplained respiratory failure after trauma.
    • The diagnostic utility of Oil Red O staining in BAL fluid for identifying fat embolism is reinforced.
    • While rare, the association between fat embolism and alveolar hemorrhage warrants clinical awareness for timely and effective patient management.