Dandy-Walker variant

  • Vermian hypoplasia
  • Cerebellar hemispheres fairly preserved
  • Large posterior fossa
  • Large CSF cyst in posterior fossa without any brain stem compression
  • Fourth ventricle is present
  • Mild lifting of torcula
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Estroff, J. A., M. R. Scott, and B. R. Benacerraf. “Dandy-Walker variant: prenatal sonographic features and clinical outcome.” Radiology 185.3 (1992): 755-758.

Wilson, Murray E., et al. “US case of the day. Dandy-Walker variant with agenesis of the corpus callosum.” Radiographics 14.3 (1994): 678-681.