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MRI of brachial plexopathies
J Sureka1, R A Cherian, M Alexander
1Department of Radiology, Christian Medical College, Vellore, India. drjyoticmch@rediffmail.com
Abstract:
Magnetic resonance imaging (MRI) has become the primary imaging technique in the evaluation of brachial plexus pathology, and plays an important role in the identification, localization, and characterization of the cause. Improvements in MRI technique have helped in detecting changes in the signal intensity of nerves, subtle enhancement, and in detecting perineural pathology, thereby refining the differential diagnosis. The present review of the visualization of brachial plexus abnormalities using MRI is based on a review of 26 cases. The causes include trauma and a spectrum of non-traumatic causes, such as acute idiopathic/viral plexitis, metastases, immune-mediated plexitis, and mass lesions compressing the brachial plexus.
Insights
Magnetic resonance imaging (MRI) is crucial for diagnosing brachial plexus conditions. Advanced MRI techniques improve the detection and characterization of nerve and surrounding pathologies, aiding in accurate diagnosis.
Area of Science:
- Radiology
- Neurology
- Medical Imaging
Background:
- Magnetic resonance imaging (MRI) is the leading method for evaluating brachial plexus disorders.
- MRI aids in identifying, locating, and characterizing the causes of brachial plexus pathology.
- Advancements in MRI techniques enhance the detection of subtle nerve signal changes and perineural abnormalities.
Purpose of the Study:
- To review the visualization of brachial plexus abnormalities using MRI.
- To highlight the role of MRI in diagnosing various brachial plexus pathologies.
Main Methods:
- Review of 26 cases involving brachial plexus abnormalities visualized by MRI.
- Analysis of MRI findings in relation to traumatic and non-traumatic causes.
Main Results:
- MRI effectively identifies nerve signal intensity changes, enhancement patterns, and perineural pathology.
- The study reviewed a range of causes including trauma, idiopathic/viral plexitis, metastases, immune-mediated plexitis, and mass lesions.
Conclusions:
- MRI is essential for diagnosing brachial plexus pathology.
- Improved MRI techniques refine differential diagnoses for a spectrum of brachial plexus conditions.
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