CTICasesExogenous Lipoid Pneumonia
Imaging findings
CT shows a solitary, low-attenuation (negative 20 to negative 30 HU, indicating fat density) pulmonary nodule in the lower lobe with adjacent bronchiectasis and fluid layering. The nodule is FDG-negative on PET. The patient was on Miralax and nasal fluticasone (Flonase) spray.
Key takeaways
Exogenous lipoid pneumonia is caused by the aspiration of lipid-containing substances, which can present as a localized low-attenuation/fatty mass or consolidation mimicking a neoplasm (e.g. hamartoma or metastasis). Chronic use of nasal steroid sprays (like fluticasone) or mineral oils is a recognized cause of silent lipid aspiration.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Dabbing-Associated Acute Lung InjuryExposure
- CPR-Related Thoracic InjuriesTrauma
- Metastatic Malignant Uterine PEComaNeoplastic
- Type B Aortic Dissection with Patent False LumenVascular
- CellCept-Induced Pneumatosis IntestinalisIatrogenic
- Retroperitoneal Fibrosis and Pulmonary Fibrosis (IgG4-Related Disease)Autoimmune
- Displaced and Crumpled Aortic StentIatrogenic
- Aneurysm and Dissection post Aortic Coarctation RepairIatrogenic
See all cases from April 15, 2021 →