Praxis Central, Willy-Brandt-Platz 4, 45127 Essen Germany
Obstetric Department, University Medical Center Nijmegen, PO box 9100 6500HB Nijmegen, The Netherlands

This is  a 36-year-old woman presenting at 13 weeks with a single fetus. The nuchal transluchency is 6.2mm with a CRL of 76mm. An absent nasal bone was also noticed. teh chorionic villus biopsy revealed a Trisomy 21.