Brachial plexopathy complicating Epstein-Barr virus infection in an adult.

Acute Epstein-Barr virus (EBV) infection is associated with central and peripheral neurological complications such as meningitis, encephalitis, myelitis and radiculopathy in 0.5-7.5% of patients. The peripheral nervous system manifestations of acute EBV infection include mononeuropathy, mononeuritis multiplex, autonomic neuropathy, and polyradiculopathy. Brachial plexopathy in children and immunocompromised adults with acute EBV infection has been described, likely as a dysimmune neuropathy triggered by the EBV. We present a case of brachial plexopathy complicating prior EBV infection in a healthy adult.