MMEP

Microphthalmia, Syndromic 8

Clinical Characteristics
Ocular Features: 

Microphthalmia is a consistent feature and short palpebral fissures have been described in one patient.  Microcornea has also been noted.  At least one patient was blind.

Systemic Features: 

The skull is small and mental retardation is usually a feature.  Other variable abnormalities include cardiac defects, prognathism, split-feet, cryptorchidism, and cleft lip and palate.  Few patients have been reported and the full phenotype is unknown.

Genetics

The gene remains unidentified in this rare syndrome but a locus has been identified at 6p21.  In at least one patient with a balanced translocation of t(6;13)(q21;q12) a disruption in the SNX3 gene at 6q21 was identified.  Most cases occur sporadically and have cytogenetic abnormalities.

Treatment
Treatment Options: 

No treatment is known.

References
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