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Acute brachial neuritis
Other Resources UpToDate PubMed

Acute brachial neuritis

Contributors: Andrea Wasilewski MD, Richard L. Barbano MD, PhD
Other Resources UpToDate PubMed

Synopsis

Acute brachial neuritis (also known as neuralgia amyotrophy or Parsonage-Turner syndrome) is a nontraumatic inflammatory condition involving the brachial plexus. It can occur in children and adults of any age. The exact cause of acute brachial neuritis is not known but is suspected to be immune-mediated; it has been reported following infection, vaccination, surgery, and pregnancy.

This condition involves multiple motor and sensory nerves of the brachial plexus, with a predilection of motor nerves. Patients typically present with unilateral acute to subacute shoulder, arm, or axillary pain followed by variable weakness and sensory change, often involving the scapula and upper arm. Weakness can begin anywhere from 1 day to several weeks after the onset of pain.

Bilateral brachial neuritis has been reported in up to 30% of cases, although symptoms tend to be asymmetric. Rare cases can involve nerves outside of the brachial plexus, including the phrenic and recurrent laryngeal nerves, leading to respiratory issues. Most patients will experience moderate to complete recovery that occurs over months.

Codes

ICD10CM:
G54.5 – Neuralgic amyotrophy

SNOMEDCT:
26609002 – Neuralgic amyotrophy

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed:03/17/2021
Last Updated:03/21/2021
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Acute brachial neuritis
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Acute brachial neuritis : Muscle atrophy, Shoulder pain, Vigorous exercise, Paresthesias, Arm weakness, Winged scapula
Copyright © 2021 VisualDx®. All rights reserved.