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Re: En: Malformação de Dandy-WalkerFrom: contadoria@link.com.brFri, 30 Jul 1999 13:51:56 -0500 (CDT)
At Wed, 28 May 1997, Raul Dorbecker wrote: > >Dandy-Walker malformation is one of the major causes of congenital >hydrocephalus. We > report on a case that was diagnosed by sonography in a fet s >at 34 weeks' gestation. The > diagnosis was confirmed by postnatal computed tomographic >(CT) brain scan and magnetic > resonance imaging (MRI). The prenatal sonographic findings >were a large posterior fossa in > communication with the fourth ventricle, a small and splay d >cerebellar hemisphere and > marked degrees of ventriculomegaly. The postnatal CT scan >images were similar to the > prenatal sonography. The hypoplasia of the cerebellar verm s >and the associated > hypogenesis of the corpus callosum can only be clearly >delineated by MRI. Dandy-Walker > malformation is one form of the Dandy-Walker complex and >cystic malformations of the > posterior fossa. It should be differentiated from >Dandy-Walker variant, or mega-cisterna > magna, and arachnoid cyst. Dandy-Walker complex may be >associated with chromosomal, > intracranial and extracranial abnormalities. Early in uter >detection is useful for detailed > evaluation of associated anomalies. Obstetric management >depends on gestational age, > karyotype abnormality and associated intracranial and >extracranial anomalies. In the present > report, the infant presented no progressive ventriculomega y >and no surgery was required. > The infant developed normally.
-- Meu nome é Lilian Maria dos sANTOS dias
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