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Articles » Aneuploidy » Trisomy 18
2007-07-27-21 Trisomy 18, 13th week © Cuillier www.thefetus.net/
Trisomy 18, 13th week

Fabrice Cuillier, MD*; J.C. Vicq, MD**; Alice Bertha***.

*      Service de Gynécologie, Hôpital F. Guyon, 97400 Saint-Denis, Réunion, France;
**    Gynecologist, Jeanne d"Arc clinic, 97400 Saint-Denis, Ile de la Réunion, France;
***   Student, Arizona State University. University Drive and Mill Avenue Tempe, Arizona 85281.

 Case report

This is a 13 week-old fetus with several anomalies that turned out to be related to the trisomy 18. Our ultrasound examination discovered a dilatation of the lateral cerebral ventricles with the choroid plexus cyst on the right. Hygroma coli and ventricular septal defect were also present. The serological tests (Toxoplasmosis, Rubeola, CMV, Herpes, Chikungunya) were normal, but the amniocentesis revealed an abnormal karyotype - 47XX+18. Parents opted for the termination of the pregnancy.

Images 1, 2: Transverse planes through the fetal head showing dilated lateral ventricles and choroid plexus cysts on the right.

 

Images 3, 4: Transverse planes through the fetal head showing dilated lateral ventricles and choroid plexus cysts on the right.

 

Images 5, 6: Transverse oblique planes through the fetal neck showing a cystic structure at consistent with the hygroma colli.

 

Images 7, 8: Transverse planes through the fetal heart showing ventricular septal defect.

 

Images 9, 10: Transverse planes through the fetal heart showing ventricular septal defect.

 

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