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Schlagwörter:
ZIC3, situs ambiguus, heterotaxy, congenital cardiac defect, balanced chromosome translocation
Zusammenfassung:
We report on a 2-year-old girl with situs ambiguus comprising right-sided stomach and spleen, left-sided liver and complex cardiac defect. Psychomotor development of this patient was normal, and no other major abnormalities were present. Chromosome analysis revealed a de novo balanced chromosome translocation t(X;1)(q26;p13.1). Molecular cytogenetic investigations identified a breakpoint spanning BAC clone on the X-chromosome containing the ZIC3 gene. Mutations in ZIC3 are associated with situs ambiguus and cardiac defects predominantly in males. This is the first report of a live born girl with an X-autosome translocation involving the ZIC3 region.
