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Inverse Marcus-Gunn phenomenon

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Disease definition

Inverse Marcus-Gunn phenomenon is a rare congenital synkinesis where jaw opening by the pterygoid muscle (during eating or yawning) causes eyelid drooping from inhibition of the oculomotor nerve to the levator palpebrae superioris. Familial occurrence has been reported.


Classification level: Subtype of disorder

Prevalence: -

Inheritance: -

Age of onset:

ICD-10: Q07.8

ICD-11: 9A03.00

UMLS: C5548210

A summary on this disease is available in Español (2012) Deutsch (2012) Italiano (2012) Nederlands (2012)
Additional information
The documents contained in this website are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.