Brachial Plexus Disorders:

Plexitis and other Inflammatory Conditions

Affecting the Brachial Plexus

A, B, C ) Image findings in patients with painless pure motor weakness of hand intrinsics  with no sensory findings (Gilliatt-Sumner Hand) there is hyperintensity and swelling in the elements of the lower trunk without mechanical deformation or other evidence of mechanical entrapment. Surgical treatment is unlikely to be effective and an inflammatory or vascular etiology is suspected.

D) Diffuse plexitis of unclear origin in the right brachial plexus. Management is non-surgical and physical therapy may not be helpful.

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