Denervation changes in muscles
left upper limb weakness following recent injury
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There is a large pseudomeningocele seen on left side in the neural foramen of C8 nerve root.
Note the denervation edema involving the left subscapularis and infraspinatus muscles
No atrophy is seen, since these changes are acute.
- Abnormal signal intensity in skeletal muscle at MR imaging: patterns, pearls, and pitfalls. May DA, Disler DG, Jones EA, Balkissoon AA, Manaster BJ. Radiographics. 2000 Oct;20 Spec No:S295-315. Review. PMID: 11046180 [PubMed - indexed for MEDLINE]