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   2012-02-01-11 Case of the week #313 © Fabric Cuillier www.TheFetus.net   

Case of the week # 313
 
March 1st  , 2012   -  March 15 th  , 2012
 
Fabrice Cuillier, MD*; A. Bertha**  

*   Department of Gynecology, Félix Guyon’Hospital, 97400 Saint-Denis, Ile de la Réunion, France;
**  Student, Arizona State University. 
 
 
This case was referred to our prenatal diagnostic center for moderate bilateral fetal ventriculomegaly during the third trimester of pregnancy.

The thickness of nuchal translucency with CRL of 64 mm was 1 mm. The triple test was 1:3000. The second ultrasound was normal.

At 30 weeks, cerebral ventriculomegaly is detected (12 mm). Corpus callosum morphology was normal. Maternal viral serologic tests were normal (no recent maternal infection). An amniocentesis was normal. Intra-amniotic viral and parasitic tests are negative.

Cerebral fetal MRI was done to confirm the presence of isolated subependymal germinolytic cysts on the lateral ventricles floor. The cerebral white matter is normal. The brain has normal gyration.


After having been counselled, the parents decided to continue the pregnancy.

The baby was born at 38 weeks. The child has a normal postnatal adaptation. The postnatal clinical examination and various metabolic tests are normal. Three months later, the clinical course of the child is normal.

Our final diagnosis is IDIOPATHIC SUBEPENDYMAL PSEUDOCYST.

Here are series of images 1-10:

 
 
 


 
 
  
 
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