• Prenatal diagnosis · Mar 2004

    Case Reports

    Del(18p) syndrome with increased nuchal translucency in prenatal diagnosis.

    • Young-Mi Kim, Eun-Hee Cho, Jin-Mi Kim, Moon-Hee Lee, So-Yeon Park, and Hyun-Mee Ryu.
    • Laboratory of Medical Genetics, Samsung Cheil Hospital and Women's Healthcare Center, Medical Research Institute, Seoul, Korea.
    • Prenat. Diagn. 2004 Mar 1; 24 (3): 161-4.

    AbstractWe report a de novo translocation between chromosome 15 and 18 resulting in monosomy 18p in prenatal diagnosis. The patient was referred for amniocentesis due to increased nuchal translucency (INT) (5 mm) at 13.6 weeks of gestation. Karyotype of the fetus revealed 45,XX,der(15;18)(q10;q10) in all metaphases. The targeted fetal ultrasound at 20 weeks of gestation did not show any special physical abnormalities other than 6.4 mm of nuchal fold thickness. Molecular cytogenetic findings using CGH and FISH confirmed the del(18p) with dicentromeres from both chromosome 15 and 18. The present study shows that the INT at first trimester was the only prenatal finding for the fetus with del(18p) syndrome and that molecular cytogenetic methods are useful for detecting chromosomal aberrations precisely.Copyright 2004 John Wiley & Sons, Ltd.

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