Table 1.

Moebius subjects' medical cases. The term “laterality” refers to the kind of facial paralysis that can be unilateral or bilateral; the sixth and seventh cranial nerves are usually involved, but other nerves may also be affected. “Associated pathologies” linked to Moebius syndrome can involve possible hand and foot anomalies, muscle hypotonia, hypoacusis, swallowing and speech problems, and Poland syndrome.

ID no.	Sex	Laterality	Cranial nerves involved	Additional functional deficits and associated pathologies
1	M	Unilateral left	VI, VII	—
2	M	Bilateral	VI, VII, III, IV	Strabismus, hypotonia, hypoacusia of the right ear, speech deficit (articulation-phonetic disorders), right plagiocephaly, psychomotor delay, epileptic seizures, cardiac crisis
3	F	Bilateral	VI, VII, XII	Foot malformations
4	F	Unilateral left	VI, VII, XII	Speech deficit, club feet
5	M	Bilateral	VI, VII, XII	Club foot, brain stem atrophy with enlargement of the fourth ventricle, hand deformities
6	F	Unilateral right	VI, VII, XII right	Micrognathia, tongue hypoplasia
7	F	Bilateral	VI, VII	Bilateral mixed hypoacusia, hypotonia, delayed growth, laryngomalacia, palatal schisis, coloboma of the right optic nerve
8	M	Bilateral	VI, VII, XII left	Respiratory difficulties, micrognathia, hypotonia, psychomotor delay, club foot
9	M	Bilateral	VII	No ocular deficits, speech delay