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Keywords:

  • ophthalmoplegic migraine;
  • abducens nerve;
  • intraparenchymal enhancement;
  • magnetic resonance imaging (MRI)

We describe a patient with ophthalmoplegic migraine and right abducens nerve palsy, in whom serial magnetic resonance imaging showed a transient, gadolinium-enhancing lesion in the right lower pons, during both headache and the headache-free period. The enhancing linear lesion was felt to represent intraparenchymal fibers of the affected abducens nerve. The possible pathophysiology of this unique finding is discussed.