Article Text

Download PDFPDF
Seeing the blocks: MRI of the brachial plexus in multifocal motor neuropathy
  1. Andoni Echaniz-Laguna1,
  2. Jean-Louis Dietemann2
  1. 1Département de Neurologie, Hôpitaux Universitaires, Strasbourg, France
  2. 2Département de Radiologie, Hôpitaux Universitaires, Strasbourg, France
  1. Correspondence to Andoni Echaniz-Laguna, Département de Neurologie, Hôpital Civil, BP 426, 67091 Strasbourg, France; andoni.echaniz-laguna{at}

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Case summary

A 45-year-old man presented with 3 months of progressive right hand weakness. Examination showed mild atrophy and weakness of the right hand, and absent tendon reflexes. Cerebrospinal fluid contained 0.42 g/l protein (normal <0.45) and 1 lymphocyte/mm3. Electrodiagnostic studies revealed a multifocal motor neuropathy (MMN) with partial conduction blocks and severe denervation in the muscles of the right hand (figure 1). Sensory nerve conduction studies were normal. Charcot–Marie–Tooth disease, distal demyelinating polyneuropathy associated …

View Full Text


  • Competing interests None.

  • Patient consent Obtained.

  • Ethics approval This study was conducted with the approval of the Strasbourg University Hospital Ethics Committee.

  • Provenance and peer review Not commissioned; externally peer reviewed.