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Cerebral fat embolism studied with MRI and SPECT
E Erdem1, I J Namer, O Saribas
1Department of Neurology, Hacettepe University School of Medicine, Ankara, Turkey.
Fat embolism to the brain can cause subtle white matter changes on MRI and localized hypoperfusion on HMPAO-SPECT. These imaging findings can resolve with clinical recovery.
Area of Science:
- Neurology
- Radiology
- Nuclear Medicine
Background:
- Fat embolism syndrome (FES) is a rare but serious complication following trauma or surgery.
- Cerebral involvement in FES can lead to significant neurological deficits.
Observation:
- A patient with suspected cerebral fat embolism presented with coma.
- Initial computed tomography (CT) scan revealed no abnormalities.
- Magnetic resonance imaging (MRI) after coma recovery showed white matter abnormalities.
Findings:
- MRI demonstrated multiple high signal abnormalities in the white matter on T1- and T2-weighted images.
- HMPAO-SPECT revealed left-sided hypoperfusion.
- These imaging findings resolved one month later, correlating with clinical improvement.
Implications:
- MRI and HMPAO-SPECT are valuable tools for diagnosing and monitoring cerebral fat embolism.
- Resolution of imaging abnormalities suggests potential for neurological recovery in FES.
- Highlights the importance of advanced neuroimaging in suspected FES cases.
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