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Hemimegalencephaly (MRI) (1)

A T1-weighted MRI of a child with left hemimegalencephaly demonstrating an enlarged hemisphere with diffuse unilateral polymicrogyria and pachygyria, associated with distortion of underlying white matter and incomplete neuronal migration. (Contributed by Dr. David Griesemer.)

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Associated Disorders

  • Epidermal nevus syndrome
  • Hypomelanosis of Ito
  • Klippel-Trenaunay-Weber syndrome
  • Linear nevus sebaceous syndrome
  • Neurofibromatosis
  • Proteus syndrome