A Report of Paracentric Inversion of Chromosome 8 in Moebius Syndrome.

An eight-year-old girl with bilateral facial paresis and restricted eye movements was diagnosed with Moebius syndrome. A chromosomal analysis showed a paracentric inversion on the long arm of chromosome 8 (46, XX, inv(8) (q21.3q24.13)). Candidate genes have been found on chromosomes 3q21, 10q21, and 13q12. We discuss the genes which are known to have associated ocular movement dysfunction in the 8q21-24 region. We hope this case will add to the current body of knowledge regarding Moebius syndrome and its genetics. [ABSTRACT FROM AUTHOR]