Document Detail


Fetal thickened nuchal soft tissues may first appear in the second trimester in Down syndrome.
MedLine Citation:
PMID:  19830827     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To describe a series of cases of late-onset fetal nuchal translucency in Down syndrome. METHOD: In our practice area, most pregnant women usually undergo 3 different sonographic examinations: a fetal nuchal translucency examination in the 1st trimester and 2 detailed surveys of all fetal organs in the early 2nd trimester and in midpregnancy. RESULT: During the study period (2003-2008), we detected 11 fetuses with new appearance of severe thickened nuchal soft tissues (>or=6 mm) at 14-16 weeks' gestation after a normal nuchal screening in the 1st trimester. All of these fetuses had trisomy 21. Associated structural anomalies were observed in 10/11 of the cases. In addition, there were 12 fetuses with new appearance of thickened nuchal soft tissues (<4 mm); all these fetuses had a normal karyotype and were normal at delivery. CONCLUSION: Obstetricians should be aware that a nuchal abnormality may first appear only at 14-16 weeks' gestation. Fetal karyotyping is advocated in these cases because of the high probability of Down syndrome.
Authors:
Etan Z Zimmer; Shraga Blazer; Shai Linn; Moshe Bronshtein
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of clinical ultrasound : JCU     Volume:  38     ISSN:  1097-0096     ISO Abbreviation:  J Clin Ultrasound     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-01-13     Completed Date:  2010-04-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401663     Medline TA:  J Clin Ultrasound     Country:  United States    
Other Details:
Languages:  eng     Pagination:  71-4     Citation Subset:  IM    
Copyright Information:
(c) 2009 Wiley Periodicals, Inc.
Affiliation:
Department of Obstetrics and Gynecology, Rambam Medical Center and Faculty of Medicine, Technion-Israel Institute of Technology, 1 Efron St., Haifa 31096, Israel.
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MeSH Terms
Descriptor/Qualifier:
Diagnosis, Differential
Down Syndrome / embryology,  ultrasonography*
Endosonography / methods
Female
Follow-Up Studies
Gestational Age
Humans
Neck / embryology,  ultrasonography*
Nuchal Translucency Measurement / methods*
Pregnancy
Pregnancy Trimester, Second*
Reproducibility of Results

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