Brachial plexitis refers to inflammatory change involving the brachial plexus. This is in contrast to a brachial plexopathy meaning any form of pathology involving the brachial plexus.
Epidemiology
Brachial plexitis is more commonly seen in men between 30 and 70 years of age and is bilateral in 10-30% of patients 3.
Pathology
Etiology
post radiation plexitis: usually presents 5-30 months after treatment, generally with doses of ≥6000 cGy
viral brachial plexitis, e.g. cytomegalovirus, coxsackievirus, herpes zoster virus, Epstein-Barr virus, parvovirus B19
immune-mediated
toxic (related to previous serum, vaccine, antibiotic or other drug administration, human immunodeficiency virus serology)
recent surgery
anesthesia
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heredofamilial hypertrophic neuropathies
hereditary neuralgic amyotrophy (familial BPL neuropathy)
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