20 year old girl presented with severe pain right shoulder and neck regions with no history of trauma and pain is followed by weakness of the muscles. MRI of the brachial plexus origin is unremarkable. However there is extensive edema along dorsoscapular (supplying rhomboideus major and minor ) and suprascapular ( supraspinatus and infraspinatus ) supplying branches of the brachial plexus of C5 and C6 nerve roots. Case submitted by- Dr MGK Murthy and Mr Abdul Hamid.
- Uncommon with 1.64 cases per 100,000 population in the US
- Simulates disc disease
- Male preponderance with 20 to 60 years age
- Severe pain followed by weakness is hall mark
- 15% follow immunization
- Viral etiology is postulated
- Other causes are drugs, idiopathic, radiation etc.
- MRI shows extensive edema along the nerve branches along with corresponding muscle edemata, leading to atrophy on the followup scans
- Electromyography suggest fibrillation potentials and positive waves
- Nerve conduction suggest denervation
No comments:
Post a Comment