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Non-syndromic trigonocephaly is a heterogeneous entity; in most cases the origin is unknown. Rare cases with autosomal dominant and recessive inheritance exist. Here the mutational screening of ten patients in the FGFR1, 2, and 3 genes and the TWIST gene causative of autosomal dominant craniosynostosis syndromes was reported. In one girl an unusual FGFR1 mutation was found.
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