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Van der Knaap's vacuolating leukoencephalopathy: two additional cases

T Thelle1, T Balslev, T Christensen

  • 1Department of Pediatrics, Viborg Hospital, Viborg, Denmark.

Insights

This study details two infantile-onset megalencephaly cases with unique MRI findings. Severe white-matter abnormalities and subcortical cysts were observed, varying with age.

Area of Science:

  • Neuroscience
  • Radiology
  • Genetics

Background:

  • Megalencephaly, characterized by an abnormally large brain, can present in infancy with diverse neurological manifestations.
  • Understanding the neuroimaging patterns associated with infantile megalencephaly is crucial for diagnosis and management.

Observation:

  • Two new cases of infantile-onset megalencephaly were identified.
  • Both patients exhibited a distinct magnetic resonance imaging (MRI) pattern.

Findings:

  • The characteristic MRI pattern included severe white-matter abnormalities and subcortical cysts.
  • One patient displayed pronounced white matter swelling on MRI at 9 months of age.
  • Another patient showed less pronounced white matter swelling at 12 years of age.

Implications:

  • These findings contribute to the spectrum of infantile megalencephaly presentations.
  • The characteristic MRI pattern may aid in early diagnosis and understanding disease progression.
  • Further research is warranted to elucidate the underlying genetic and molecular mechanisms.

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