title: Neuroimaging of classic neuralgic amyotrophy.
abstract: Neuralgic amyotrophy (NA) often imposes diagnostic problems. Recently, MRI and high-resolution ultrasound (HRUS) have proven useful in diagnosing peripheral nerve disorders.
  
  
  
  We performed a chart and imaging review of patients who were examined using neuroimaging and who were referred because of clinically diagnosed NA between March 1, 2014 and May 1, 2015.
  
  
  
  Six patients were included. All underwent HRUS, and 5 underwent MRI. Time from onset to evaluation ranged from 2 weeks to 6 months. HRUS showed segmental swelling of all clinically affected nerves/trunks. Atrophy of muscles was detected in those assessed >1 month after onset. MRI showed T2-weighted hyperintensity in all clinically affected nerves, except for the long thoracic nerve, and denervation edema of muscles.
  
  
  
  HRUS and MRI are valuable diagnostic tools in NA. This could change the diagnostic approach from one now focused on excluding other disorders to confirming NA through imaging markers. Muscle Nerve 54: 1079-1085, 2016.
authors.affiliation: Department of Neurology, Medical University of Vienna, Währinger Gürtel 18-20 1090, Vienna, Austria.
authors.forename: Doris
authors.identifier: 0000-0002-4313-7707
authors.initials: D
authors.lastname: Lieba-Samal
authors.affiliation: Department of Radiology and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria.
authors.forename: Suren
authors.initials: S
authors.lastname: Jengojan
authors.affiliation: Department of Radiology and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria.
authors.forename: Gregor
authors.initials: G
authors.lastname: Kasprian
authors.affiliation: Department of Neurology, Medical University of Vienna, Währinger Gürtel 18-20 1090, Vienna, Austria.
authors.forename: Christian
authors.initials: C
authors.lastname: Wöber
authors.affiliation: Department of Radiology and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria.
authors.forename: Gerd
authors.initials: G
authors.lastname: Bodner
mesh_terms: D000328:Adult; D020968:Brachial Plexus Neuritis / Q000000981:diagnostic imaging*; D004576:Electromyography; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014463:Ultrasonography; D055815:Young Adult
keywords: Parsonage-Turner syndrome; all pain; autoimmune diseases; brachial plexus neuritis; neuralgic amyotrophy; peripheral neuropathy; postinfectious; ultrasound