What is Dandy Walker Malformation ? Any Other People living with this Rare Condition ?
The Dandy-Walker complex is a rare congenital intracranial malformation that comprises a spectrum of abnormalities of the posterior fossa which are classified as:
(a) Dandy-Walker malformation (cystic dilatation of the 4th ventricle, complete or partial agenesis of the cerebellar vermis and an enlarged posterior fossa)
(b) Dandy-Walker variant (cystic posterior fossa mass with variable hypoplasia of the cerebellar vermis and no
enlargement of the posterior fossa) and
(c) Megacisterna magna (enlarged cisterna magna with normal cerebellar vermis and fourth ventricle).
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The Dandy-Walker malformation is a term which r e p r e s e n t s not just a single entity, but several abnormalities of brain development which coexist. This disorder is a congenital brain malformation typically involving the fourth ventricle and the cerebellum.
Dandy-Walker malformation is frequently associated with other intracranial anomalies such as agenesis of the corpus callosum, holoprosencephaly, occipital encephaloceles and ocular abnormalities. Extra-cranial anomalies include polycystic kidneys, cardiovascular defects, polydactyly and cleft palate.
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Genetic factors have a major role in the etiology of this condition. Dandy-Walker malformation may occur as part of Mendelian disorders and chromosomal aberrations. Environmental factors including viral infections , alcohol and diabetes have also be en suggested to play a role in the genesis of Dandy-Walker malformation but the evidence is uncertain.
In the absence of a recognizable syndrome a recurrence risk in subsequent pregnancies of 1-5% i s suggested.
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Dandy-Walker malformation is recognized by an enlarged posterior fossa, cystic posterior fossa mass communicating with the 4th ventricle and varying degree of vermian hypoplasia/agenesis. In this condition, borderline to overt ventriculomegaly and other neural/extra neural defects are generally present.
Retrocerebellar arachnoid cyst is a less common and more benign anomaly than Dandy Walker malformation because in these cases the underlying brain is normal. The cerebellar hemispheres are not separated by a cystic mass, rather displaced en-bloc.
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I have been asked for a Termination of Pregnancy .
Is there Any Other people/family/babies living with this Rare condition ?
You would certainly be glad to know that you are not the only one suffering from this condition.
As it is a rare brain anomaly, some people have already started a group support in several countries not only to raise awareness with DW but to help each other to cope with the disabilities on a daily basis .
*Please drop a line if you are aware of any existent or new groups regarding Dandy Walker.
Please state the Country, Town, and Language.*
To add your comment : either click the following link or scroll down the page http://www.dandywalker.eu/archives/2011/08/10/21768048.html#comments
Thank You for your Support.
Let's Give HOPE - LIFE - and same CHANCES to our kids.
"Les Enfants Dandy Walker" :
Support group in French for Parents/Family/People with Dandy Walker and Associated illness and Malformations