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Diagnostics
Volume 15
Issue 19
10.3390/diagnostics15192468
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Interesting Images

Proximal Pulmonary Fat Embolism on Non-Contrast Chest CT

by
Romain L’Huillier
1,2,3,* and
Alexandra Braillon
4
1
Department of Medical Imaging, Edouard Herriot Hospital, Hospices Civils de Lyon, University of Lyon, 69002 Lyon, France
2
LabTAU, INSERM U1032, 69003 Lyon, France
3
Everest, The French Comprehensive Liver Center, Hospices Civils de Lyon, University of Lyon, 69002 Lyon, France
4
Department of Medical Imaging, Louis Pradel Hospital, Hospices Civils de Lyon, 69002 Lyon, France
*
Author to whom correspondence should be addressed.
Diagnostics 2025, 15(19), 2468; https://doi.org/10.3390/diagnostics15192468
Submission received: 13 August 2025 / Revised: 24 September 2025 / Accepted: 25 September 2025 / Published: 26 September 2025
(This article belongs to the Special Issue Optimizing Personalized Radiation Dose in Computed Tomography: Justification and Diagnostic Reference Levels)
Review Reports Versions Notes

Abstract

We report in this clinical case a proximal pulmonary fat embolism detected on unenhanced chest computed tomography (CT) responsible for a recovered cardiac arrest during a left total hip arthroplasty for a femoral neck fracture. This observation underscores the diagnostic value of integrating a non-contrast phase in chest CT in the postoperative context of orthopedic surgery, as it ensures accurate identification of the fatty nature of pulmonary arterial thrombi and thereby contributes to improved diagnostic accuracy and differential diagnosis.
Keywords: pulmonary fat embolism; fat embolism syndrome; nonthrombotic pulmonary embolism pulmonary fat embolism; fat embolism syndrome; nonthrombotic pulmonary embolism

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MDPI and ACS Style

L’Huillier, R.; Braillon, A. Proximal Pulmonary Fat Embolism on Non-Contrast Chest CT. Diagnostics 2025, 15, 2468. https://doi.org/10.3390/diagnostics15192468

AMA Style

L’Huillier R, Braillon A. Proximal Pulmonary Fat Embolism on Non-Contrast Chest CT. Diagnostics. 2025; 15(19):2468. https://doi.org/10.3390/diagnostics15192468

Chicago/Turabian Style

L’Huillier, Romain, and Alexandra Braillon. 2025. "Proximal Pulmonary Fat Embolism on Non-Contrast Chest CT" Diagnostics 15, no. 19: 2468. https://doi.org/10.3390/diagnostics15192468

APA Style

L’Huillier, R., & Braillon, A. (2025). Proximal Pulmonary Fat Embolism on Non-Contrast Chest CT. Diagnostics, 15(19), 2468. https://doi.org/10.3390/diagnostics15192468

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