Marcus Gunn Syndrome
| Classification according to ICD-10 | |
|---|---|
| Q07.8 | Other specified congenital malformations of the nervous system (Marcus) Gunn syndrome |
| ICD-10 online (WHO version 2019) | |
The Marcus Gunn syndrome (synonym: mandibulopalpebral synkinesis ) is a congenital movement disorder of the upper eyelid ( jaw winking ), which is due to a paradoxical innervation between the levator palpebrae superioris muscle and the pterygoideus lateralis muscle, i.e. the muscle which moves the head of the jaw forward when the mouth is opened.
The clinical picture was named after the Scottish ophthalmologist Robert Marcus Gunn , who first described it at the end of the 19th century.
Symptoms
Symptoms include partial or complete drooping ( ptosis ) of the affected eyelid, which, however, often lifts completely at the moment when the affected person opens his mouth and moves the lower jaw to the opposite side of the affected eye.
Expression
The severity of this disease varies, and it is not yet clear how this paradoxical innervatory coupling occurs, since the muscles involved are normally innervated by different cranial nerves ( oculomotor nerve or mandibular nerve ).
therapy
So far there is no ideal treatment. In severe cases one tries to improve the situation with operative means. However, some patients independently manage to get the incorrectly nerved upper eyelid under control through training in front of the mirror.
See also
literature
- Herbert Kaufmann (Ed.): Strabismus. With the collaboration of Wilfried de Decker et al. Enke, Stuttgart 1986, ISBN 3-432-95391-7 .
- Rudolf Sachsenweger (Ed.): Neuroophthalmology. 3rd, revised edition. Thieme, Stuttgart et al. 1983, ISBN 3-13-531003-5 , p. 275.
Individual evidence
- ↑ Gunn RM .: Congenital ptosis with peculiar associated movements of the affected lid. In: Transact Ophthalmol Soc Unit Kingd (London) . tape 3 , 1883, p. 283-287 .
