Familial porencephalic white matter disease in two generations

Area of Science:

• Neurology
• Genetics
• Neuroimaging

Background:

• Porencephaly is a rare neurological condition characterized by cavities within the brain.
• Understanding the genetic basis and inheritance patterns of neurological disorders is crucial for diagnosis and treatment.

Observation:

• A family presented with a similar, variably expressed cerebral disorder affecting a mother and her two children.
• Cerebral imaging (CT scans) revealed uni- or bilateral cavities in the supratentorial white matter, connected to the ventricular system.
• Additional white matter hypodensity around the lateral ventricles, without ventricular enlargement, suggests a primary myelination disorder.

Findings:

• The observed pattern of the disorder within the family suggests autosomal dominant inheritance.
• This is likely the first reported instance of porencephaly exhibiting an autosomal dominant inheritance pattern.

Implications:

• This finding contributes to the understanding of porencephaly's etiology and genetic underpinnings.
• Identifying an autosomal dominant inheritance pattern can aid in genetic counseling and family planning for affected individuals.
• Further research, including histopathological confirmation, is warranted to fully elucidate the pathophysiology of this specific form of porencephaly.