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Cystic retrocerebellar malformations: unification of the Dandy-Walker complex and the Blake's pouch cyst
R D Strand1, P D Barnes, T Y Poussaint
1Department of Radiology, Children's Hospital, Boston, MA 02115.
Pediatric Radiology
|January 1, 1993
Abstract:
Twenty-six cases of developmental retrocerebellar cyst (RCC) formation are studied with respect to determining the usefulness and anatomic relevance of separate terms currently in use, including Dandy-Walker complex, Dandy-Walker malformation, Dandy-Walker variant, mega-cisterna magna (MCM), and Blake's pouch cyst. An anatomic and embryological continuum between Dandy-Walker complex and Blake's pouch cyst is proposed. A method for the useful assessment of RCC is outlined. The patency or closure of the aqueduct is crucial to the evaluation and management of hydrocephalus associated with RCC formation.