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- C4:
- C5
-scapular pain with vague sensory changes.
-supraspinatus, infraspinatus, deltoid
-DDX:Upper cord brachial plexus palsy, suprascapular N palsy, axillary N palsy
- C6
-Retroscapular, thumb, index finger pain
-Biceps, brachioradialis, pronator teres
-DDX: brachial plexus palsy,
- C7
-retroscapular pain, pain/numbness in long & middle fingers
-triceps, wrist, finger extensors and flexors
-brachial plexus palsy, radial nerve palsy, median nerve palsy
- C8
- medial forearm, ring & small finger numbness/pain
-finger extensors & flexors, intrinsics
-lower cord brachial plexus palsy, radial / median / ulnar nerve palsy
- T1-same as C8 above
- T2
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