[edit] Discussion of Mega cisterna magna ... It is believed that when such large spaces manifest with mass effect on the cerebellum, enlargement of the posterior fossa and/or splitting of the falx, and supratentorial extension, they can be attributed not to an enlarged subarachnoid cistern but to a space-occupying lesion.
www.radswiki.net/main/index.php?title=Mega_cisterna_mag... www.radswiki.net/main/index.php?title=Mega_cisterna_magna
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We retrieved all prenatal sonograms performed at our institution between 1989 and 1996 in which an enlarged cisterna magna was the only sonographic abnormality.
www.jultrasoundmed.org/cgi/content/abstract/16/11/731
This is a discussion on MedHelp about enlarged cisterna magna / prominent posterior fossa cisterns. Community members of MedHelp provide help, support, guidance and discussion around the topic of enlarged cisterna magna / prominent posterior fossa cisterns ... Very prominent cisterna magna / superior cerebellar cistern.
www.medhelp.org/posts/Neurology/enlarged-cisterna-magna... www.medhelp.org/posts/Neurology/enlarged-cisterna-magna---prominent-posterior-fossa-cisterns/show/295636
Dandy-Walker syndrome - Wikipedia, the free encyclopedia
Dandy-Walker syndrome (DWS), or Dandy-Walker complex, is a congenital brain malformation involving the cerebellum and the fluid filled spaces around it. A key feature of this syndrome is the partial ...
en.wikipedia.org/wiki/Dandy-Walker_syndrome
Enlarged Cisterna Magna in the Third Trimester as a Clue to Fetal Trisomy 18; Chih-Ping Chena,b, Tai-Ho Hungc, Sheau-Wen Janb, Cherng-Jye Jenga; ... Six of 19 fetuses with trisomy 18 confirmed by late karyotyping in the third trimester were found to have an enlarged cisterna magna (10 mm or more). For trisomy 18...
content.karger.com/ProdukteDB/produkte.asp?Doi=20797
Mega cisterna magna is an enlarged cisterna magna with integrity of both cerebellar vermis and fourth ventricle. Nevertheless, the diagnosis of a cystic lesion in posterior fossa often leads to a difficulty in the diagnosis.
www.thefetus.net/page.php?id=1800
Cisterna magna enlarged - >10mm. Free communication with perimedullary subarachnoid space. The cisterna may be so large that it extends laterally, posteriorly and superiorly far beyond the normal anatomic limits of the cisterna magna.
www.fetalultrasound.com/online/text/5-084.HTM
Enlarged cisterna magna is diagnosed if the vertical distance from the vermis to the inner border of the skull is more than 10 mm. ... Experience with apparently isolated partial agenesis of the vermis or enlarged cisterna magna is limited and the prognosis for these conditions is uncertain.
www.centrus.com.br/DiplomaFMF/SeriesFMF/18-23-weeks/cha... www.centrus.com.br/DiplomaFMF/SeriesFMF/18-23-weeks/chapter-02/chapter-02/cns/cnsfmf.html
Classically, posterior fossa cystic malformations have been divided into Dandy-Walker malformation, Dandy-Walker variant, mega cisterna magna, ... Mega cisterna magna consists of an enlarged posterior fossa secondary to an enlarged cisterna magna, with a normal cerebellar vermis and fourth ventricle.
emedicine.medscape.com/article/408059-overview
I had my 30 week ultrasound on July 13th and I got the news this past Wednesday that my baby girl has an enlarged cisterna magna. I've been looking it up and it all sounds EXTREMELY frightening to me. The cisterna magna is a space around the cerebellum in the brain which spinal fluids flow through.
community.babycenter.com/post/a12310715/enlarged_cister... community.babycenter.com/post/a12310715/enlarged_cisterna_magna
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