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Hypophosphatasia associated with increased nuchal translucency: a report of two affected pregnancies
A P Souka1, F L Raymond, E Mornet
1Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK.
Abstract:
Perinatal hypophosphatasia is a lethal autosomal recessive skeletal abnormality with a birth prevalence of about 1 per 100 000. It is characterized by deficiency of the tissue-nonspecific isoenzyme of alkaline phosphatase causing abnormal bone mineralization. In the two affected fetuses from the same family ultrasound examination at 14 and 12 weeks, respectively, demonstrated increased nuchal translucency thickness, hypomineralization of the skull and spine, narrowing of the chest and shortening of the limbs.
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