Diseases of the cervical (and first thoracic) roots, nerve trunks, cords, and peripheral nerve components of the BRACHIAL PLEXUS. Clinical manifestations include regional pain, PARESTHESIA; MUSCLE WEAKNESS, and decreased sensation (HYPESTHESIA) in the upper extremity. These disorders may be associated with trauma (including BIRTH INJURIES); THORACIC OUTLET SYNDROME; NEOPLASMS; NEURITIS; RADIOTHERAPY; and other conditions. (From Adams et al., Principles of Neurology, 6th ed, pp1351-2)

Synonyms: Paralysis, Klumpke, Klumpkes Palsy, Brachial Plexus Disorder, Brachial Plexus Disorders, Plexus Neuropathy, Brachial, Brachial Plexus Neuropathy, Brachial Plexus Diseases, Neuropathy, Brachial Plexus, Klumpke Paralysis, Erbs Palsy, Paralysis, Erb, Paralyses, Erb, Plexopathy, Brachial, Paralysis, Erb-Duchenne, Plexus Diseases, Brachial, Brachial Plexus Neuropathies, Erb Paralysis, Erb-Duchenne Paralyses, Erb's Palsy, Palsies, Erb's, Upper Brachial Plexus Neuropathy, Dejerine Klumpke Palsy, Erb Paralyses, Brachial Plexopathy, Erb Duchenne Paralysis, Palsy, Dejerine-Klumpke, Klumpke Palsy, Plexus Disease, Brachial, Brachial Plexus Disease, Dejerine-Klumpke Palsy, Lower Brachial Plexus Neuropathy, Plexopathies, Brachial, Erb-Duchenne Paralysis, Erb's Palsies, Neuropathies, Brachial Plexus, Paralyses, Erb-Duchenne, Palsy, Erb's, Plexus Disorder, Brachial, Palsy, Klumpke's, Lower Brachial Plexus Palsy, Klumpke's Palsy, Paralysis of the Lower Brachial Plexus, Plexus Disorders, Brachial, Erb Palsy, Plexus Neuropathies, Brachial, Middle Brachial Plexus Neuropathy