Dementia associated with cortical dysplasia

Area of Science:

• Neuropathology
• Neuroscience
• Dementia Research

Background:

• Adult-onset dementia presents with diverse etiologies.
• Cortical dysplasia is a malformation of the cerebral cortex.
• This condition is predominantly associated with childhood-onset epilepsy.

Observation:

• A 47.5-year-old man presented with progressive dementia, depression, memory loss, and personality changes.
• He experienced seizures and died 5.5 years after symptom onset.
• Autopsy revealed hippocampal necrosis and widespread microscopic nodular cortical dysplasia.

Findings:

• The cortical dysplasia consisted of abnormal cell clusters with enlarged, pleomorphic nuclei and ballooned cytoplasm.
• No mitoses were observed in the dysplastic cells.
• This represents a potential, previously unreported cause of adult dementia.

Implications:

• The findings challenge the established understanding of cortical dysplasia's clinical manifestations.
• This case highlights the need to consider cortical dysplasia in the differential diagnosis of adult-onset dementia.
• Further research is warranted to elucidate the pathoetiologic mechanisms linking cortical dysplasia to dementia.