Catalog

Autoimmune brachial neuritis

No MMS code

Link to WHO Definition

Autoimmune brachial neuritis – http://id.who.int/icd/entity/1144088177

Autoimmune brachial neuritis is a distinct PNS disorder characterised by attacks of acute neuropathic pain and rapid multifocal weakness and atrophy unilaterally in the upper limb. It occurs spontaneously and also after vaccination. An analogous brachial plexus lesion similar to diabetic amyotrophy has been described. Clinically it is usually associated with severely painful onset and a predominance of motor signs in the C5/C6 (upper brachial plexus) distribution, followed by atrophy. The phrenic nerve can be involved. Rarely involvement of lower brachial plexus occurs. The syndrome is usually reversible, although loss of function can prevail. Recurrent episodes suggest a genetic cause. Associated neural autoantibodies include GT1a or GM1b gangliosides and GQ1b.