Dandy-Walker continuum
Citation, DOI, disclosures and article data
At the time the article was created Bruno Di Muzio had no recorded disclosures.
View Bruno Di Muzio's current disclosuresAt the time the article was last revised Arlene Campos had no financial relationships to ineligible companies to disclose.
View Arlene Campos's current disclosures- Dandy Walker complex
- Dandy Walker spectrum
- Dandy Walker malformation complex
- Dandy-Walker continuum
- Dandy-Walker spectrum
- Dandy-Walker complex
- Dandy Walker malformation spectrum
- Dandy Walker malformation continuum
Dandy-Walker continuum, also referred to as Dandy-Walker spectrum or Dandy-Walker complex, corresponds to a group of disorders believed to represent a continuum spectrum of posterior fossa malformations, characterized by inferior vermian hypoplasia and incomplete formation of the fourth ventricle which communicates with a prominent posterior fossa CSF space 4.
These conditions are poorly understood, and the terminology is used variably, so a more detailed anatomic description is recommended for clarity 2.
Two systematic reviews have suggested that the risk of abnormal postnatal functional outcome is high in Dandy-Walker malformation and low in Blake’s pouch cyst 5.
Conditions classically included under the term Dandy-Walker continuum include:
Dandy-Walker malformation (“classic”)
isolated inferior vermian hypoplasia (historically called Dandy-Walker variant)
References
- 1. Patel S, Barkovich AJ. Analysis and classification of cerebellar malformations. AJNR Am J Neuroradiol. 2002;23 (7): 1074-87. AJNR Am J Neuroradiol (full text) - Pubmed citation
- 2. Bosemani T, Orman G, Boltshauser E et-al. Congenital abnormalities of the posterior fossa. Radiographics. 2015;35 (1): 200-20. doi:10.1148/rg.351140038 - Pubmed citation
- 3. Kollias S, Ball W, Prenger E. Cystic Malformations of the Posterior Fossa: Differential Diagnosis Clarified Through Embryologic Analysis. Radiographics. 1993;13(6):1211-31. doi:10.1148/radiographics.13.6.8031352 - Pubmed
- 4. Choudhri A, Cohen H, Siddiqui A, Pande V, Blitz A. Twenty-Five Diagnoses on Midline Images of the Brain: From Fetus to Child to Adult. Radiographics. 2018;38(1):218-35. doi:10.1148/rg.2018170019 - Pubmed
- 5. Anja Wüest, Daniel Surbek, Roland Wiest, Christian Weisstanner, Harald Bonel, Maja Steinlin, Luigi Raio, Boris Tutschek. Enlarged posterior fossa on prenatal imaging: differential diagnosis, associated anomalies and postnatal outcome. (2017) Acta Obstetricia et Gynecologica Scandinavica. 96 (7): 837. doi:10.1111/aogs.13131 - Pubmed
Incoming Links
- Mega cisterna magna
- Aicardi syndrome
- Joubert syndrome
- Fetal MRI
- Classification system for malformations of the cerebellum
- Syrinx
- Vermis
- Blake's pouch cyst
- Enlarged posterior fossa 'CSF' space
- Vermian maturity assessment (approach)
- Coffin-Siris syndrome
- Dandy-Walker malformation
- Fourth ventriculocoele
Related articles: Malformations of the central nervous system
-
malformations of cortical development
- abnormal cell proliferation or apoptosis
- abnormal brain size
-
microcephaly
- with normal to simplified cortical pattern
- microcephaly with lissencephaly
- microcephaly with extensive polymicrogyria
- macrocephalies (megalencephaly/macrocephaly)
-
microcephaly
- abnormal cell proliferation
- non-neoplastic
- cortical hamartomas of tuberous sclerosis
- hemimegalencephaly
-
focal cortical dysplasia (Type I and Type IIb)
- Palmini classification (2004)
- Barkovich classification (2005)
- Blumcke classification (2011)
- neoplastic
- non-neoplastic
- abnormal neuronal migration
- lissencephaly
- lissencephaly type I: subcortical band heterotopia spectrum (band heterotopia): undermigration
- lissencephaly type II (cobblestone complex)
- heterotopia: ectopic migration
- subependymal heterotopia
- subcortical heterotopia (not including band heterotopia)
- marginal glioneuronal heterotopia
- lissencephaly
- abnormal cortical organization
- mild malformations of cortical development (previously microdysgenesis)
-
polymicrogyria and schizencephaly
- bilateral polymicrogyria syndromes
- schizencephaly
- focal cortical dysplasia (Type IIa)
- abnormal brain size
- not otherwise classified
- malformations secondary to inborn errors of metabolism
- mitochondrial and pyruvate metabolic disorders
- peroxisomal disorders
- other unclassified malformations
- malformations secondary to inborn errors of metabolism
- abnormal cell proliferation or apoptosis
-
midline abnormalities of the brain
- absent septum pellucidum
- cephaloceles
-
midline nasal region lesions
- nasal dermoid
- nasal glioma
- nasal dermal sinus
- cerebral hemispheres
-
holoprosencephaly/septo-optic dysplasia spectrum
- septo-optic dysplasia
- lobar holoprosencephaly
- semilobar holoprosencephaly
- alobar holoprosencephaly
- middle interhemispheric variant/syntelencephaly
-
holoprosencephaly/septo-optic dysplasia spectrum
- corpus callosum
- intracranial lipoma
-
malformations of the cerebellum
- cerebellar hypoplasia
- focal hypoplasia
- generalized hypoplasia
- with enlarged fourth ventricle
- normal fourth ventricle
- with normal pons
- with small pons
- normal foliation
- pontocerebellar hypoplasias of Barth, types I and II
- cerebellar hypoplasias, not otherwise specified
- normal foliation
- cerebellar dysplasia
- focal dysplasia
- isolated vermian dysplasia
- molar tooth malformations including Joubert syndrome
- rhombencephalosynapsis
- isolated hemispheric dysplasia
- focal cerebellar cortical dysplasias/heterotopia
- dysplastic cerebellar gangliocytoma
- isolated vermian dysplasia
- generalized dysplasia
- congenital muscular dystrophies
- cytomegalovirus
- lissencephaly with RELN mutation
- lissencephaly with agenesis of corpus callosum and cerebellar dysplasia
- associated with diffuse cerebral polymicrogyria
- diffusely abnormal foliation
- focal dysplasia
- cerebellar hypoplasia
- malformations of the brainstem