Nager acrofacial dysostosis: Evidence for apparent heterogeneity

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Abstract
Nager acrofacial dysostosis is characterized by malar, mandibular, and maxillary hypoplasia, macrostomia, abnormal ears, and radial defects. The lower limbs are usually normal. Two patients were reported with many of these manifestations, in addition to severe facial clefts and limb deficiency. These more severely affected patients were thought to have a severe form of Nager acrofacial dysostosis or a new syndrome. We report on a patient with limb findings of intermediate severity. This patient also had hydrocephalus, micropolygyria, and tetralogy of Fallot. This may indicate apparent heterogeneity or a single condition with widely variable expression.