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Title: Apert syndrome with preaxial polydactyly showing the typical mutation Ser252Trp in the FGFR2 gene
Author: Mantilla-Capacho, J.M.
Arnaud, L.
Diaz-Rodriguez, M.
Barros-Nunez, P.
Issue Date: 2005
Abstract: Apert syndrome with preaxial polydactyly showing the typical mutation Ser252 Trp in the FGFR2 gene: The Apert syndrome is characterized by craniosynostosis and syndactyly of hands and feet. Although most cases are sporadic, an autosomal dominant mode of inheritance is well documented. Two mutations in the FGFR2 gene (Ser252Trp and Pro253Arg) account for most of the cases. We report a patient with a rare form of Apert syndrome with polydactyly. The proposita has turribrachycephaly, complete syndactyly of 2nd to 5th digits ("mitten hands" and cutaneous fusion of all toes). The X-rays revealed craniosynostosis of the coronal suture and preaxial polydactyly of hands and feet with distal bony fusion. Molecular analysis found a C755G transversion (Ser252Trp) in the FGFR2 gene. Only eight patients with Apert syndrome and preaxial polydactyly have been reported and this is the first case In which molecular diagnosis is available. On the basis of the molecular findings in this patient, polydactyly should be considered part of the spectrum of abnormalities in the Apert syndrome. This assertion would establish the need for a new molecular classification of the acrocephalopolysyndactylies.
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