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Dandy–Walker malformation (DWM), also known as Dandy–Walker syndrome (DWS), is a rare congenital brain malformation in which the part joining the two hemispheres of the cerebellum (the cerebellar vermis) does not fully form, and the fourth ventricle and space behind the cerebellum (the posterior fossa) are enlarged with cerebrospinal fluid.
The condition was dubbed "Jones Syndrome" later that year but this term is not widely used as another condition is also known by this name. In 2010, another family of Moroccan-Jewish origin were reported to have the syndrome, and it was noted that the posterior fossa anomalies were most likely responsible for the development of hydrocephalus.
The abnormalities of the leptomeninges during fetal development due to neurocutaneous melanosis may be the cause of this increased incidence of the Dandy-Walker malformation. The development of hydrocephalus is the most common symptom associated with a combination of neurocutaneous melanosis and a Dandy-Walker malformation, occurring in about ...
Dandy Walker malformation is a relatively common congenital brain malformation with a prevalence of 1:30,000 live births. [17] Dandy Walker malformation is characterized by enlarged posterior fossa and in which the cerebellar vermis is completely absent, or present in a rudimentary form, sometimes rotated accompanied by an elevation of the ...
Developmental disorders including neural-tube defects, arachnoid cysts, Dandy–Walker syndrome, and Arnold–Chiari malformation can also cause primary hydrocephalus. About 80–90% of fetuses or newborn infants with the neural-tube defect spina bifida —often associated with meningocele or myelomeningocele —develop hydrocephalus.
Dandy–Walker malformation; Diaphragmatic hernia; Diastrophic dysplasia; Double outlet right ventricle; Duodenal atresia; Ebstein's anomaly; Ectopia cordis; Encephalocele; Endocardial cushion defect; Esophageal atresia; Exstrophy of the bladder; Fetal alcohol syndrome; First arch syndrome; Focal femoral hypoplasia; Gastrointestinal atresia ...
A sonogram before their birth showed Sinny had a hole in heart and she was diagnosed with Dandy-Walker syndrome, a rare congenital disorder that affects brain development.
Dandy-Walker malformation is also occasionally seen in Ellis–Van Creveld syndrome, which is characterized by heart defects and malformed alveolar ridge. [5] Many disorders include the Dandy–Walker phenotype and thus it is not pathognomonic for 3C syndrome. [10] CHARGE syndrome can also be misdiagnosed. This is because both CHARGE syndrome ...