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Colpocephaly in a 6-week-old boy (CT)

Note the dilated occipital horns of the ventricles with reduced periventricular white matter. There also is absence of the corpus callosum with wide separation of the frontal horns. (Contributed by Dr. Bhuwan Garg.)

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Associated Disorders

  • 6q terminal deletions
  • Agenesis of the corpus callosum
  • Aicardi syndrome
  • Chudley-McCullough syndrome
  • Deletion of chromosome 21
  • Hemimegalencephaly
  • Linear nevus sebaceous syndrome
  • Lissencephaly type 1
  • Marden-Walker syndrome
  • Norman-Roberts syndrome
  • Perinatal hypoxic-ischemic encephalopathy
  • Shapiro syndrome
  • Tourette syndrome
  • Zellweger syndrome
  • periventricular leukomalacia