title: Cystic retrocerebellar malformations: unification of the Dandy-Walker complex and the Blake's pouch cyst.
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.
authors.affiliation: Department of Radiology, Children's Hospital, Boston, MA 02115.
authors.forename: R D
authors.initials: RD
authors.lastname: Strand
authors.forename: P D
authors.initials: PD
authors.lastname: Barnes
authors.forename: T Y
authors.initials: TY
authors.lastname: Poussaint
authors.forename: J A
authors.initials: JA
authors.lastname: Estroff
authors.forename: P E
authors.initials: PE
authors.lastname: Burrows
mesh_terms: D016080:Arachnoid Cysts / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D002531:Cerebellum / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D002946:Cisterna Magna / Q000002:abnormalities / Q000000981:diagnostic imaging; D000013:Congenital Abnormalities / Q000175:diagnosis / Q000000981:diagnostic imaging; D003616:Dandy-Walker Syndrome / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed