title: Brachial plexopathy as a rare presenting manifestation of scorpion envenomation.
abstract: We report a patient who experienced a rare manifestation of an acute, severe brachial plexopathy as the initial complication of scorpion (presumed Hemiscorpius lepturus species) envenomation. Features suggesting conduction block, due to either proximal demyelination or ion channel dysfunction, along with axonal loss were seen on serial electrophysiological studies. Possible mechanisms of the brachial plexopathy include direct compression from tissue edema or a toxic effect on the membrane channels along the nerve.
authors.affiliation: Department of Neurology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, Florida 32224, USA. rubin.devon@mayo.edu
authors.forename: Devon I
authors.initials: DI
authors.lastname: Rubin
authors.forename: Michael
authors.initials: M
authors.lastname: Vavra
mesh_terms: D000328:Adult; D000818:Animals; D020516:Brachial Plexus Neuropathies / Q000175:diagnosis* / Q000628:therapy; D003937:Diagnosis, Differential; D006801:Humans; D007299:Insect Bites and Stings / Q000175:diagnosis* / Q000628:therapy; D008297:Male; D009431:Neural Conduction / Q000502:physiology; D012605:Scorpions