Palmini classification

Focal cortical dysplasias

Type I

Cortical dyslamination

Type II

Cortical dyslamination and grossly abnormal cellular elements:

• type IIa: dysplastic (dysmorphic) neurons
• type IIb: balloon cells

Reference

Palmini A. Revising the classification of focal cortical dysplasias. Epilepsia 2011; 52:188-190.

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