✦ LIBER ✦
Aberrant regeneration in a case of syringobulbia: selective co-activation of abducens and facial nerves during saccades
✍ Scribed by E. Altenmüller; J. Dichgans; M. Fetter
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 232 KB
- Volume
- 237
- Category
- Article
- ISSN
- 0340-5354
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✦ Synopsis
A patient suffering from syringobulbia and syringomyelia exhibited a phasic contraction of the ipsilateral facial muscles, mainly the levator labii, whenever he looked to the left or right. Facial muscle twitches occurred exclusively with saccades. The selective co-activation of abducens and facial nerves is interpreted as the result of bilateral misrouting of regenerating neurons from the parapontine reticular formation to the facial nerve in the tegmentum pontis.