Neurilemmomas of the brachial plexus are uncommon but they are important because of the functional significance and anatomical location of the brachial plexus. Only symptomatic neurilemmomas of the brachial plexus should be removed because the risk of injury is great. An attempt should always be made to remove the neurilemmoma from the nerve and preserve the neural integrity. Familiarity with and adequate exposure of the axilloclavicular region is essential in any dissection of the brachial plexus. Clavicular transection is usually required which necessitates stabilization with wire, metal plate, or threaded intramedullary pin.
Helmus C. Massive Neurilemmoma of the Brachial Plexus. Arch Otolaryngol. 1971;93(3):244–248. doi:10.1001/archotol.1971.00770060382004