Harlequin ichthyosis is a lethal autosomal recessive disorder characterized by an extremely thickened keratin layer of skin, flattened ears, and diffuse platelike scales. Prenatal sonographic diagnosis has been described, with findings of a persistently open mouth, echogenic amniotic fluid, and fixed flexion of the extremities. Here we describe a case of harlequin ichthyosis in which the syndromic features were shown best on three-dimensional (3D) and four-dimensional (4D) real-time sonography.
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Vohra et al. (2003) studied this question.
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