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Updated: Apr 23, 2026

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
Published on: September 20, 2024
Electro-clinical-pathological correlations in focal cortical dysplasia (FCD) at young ages
Hans Holthausen1, Tom Pieper, Peter Winkler
1Neuropediatric Clinic and Clinic for Neurorehabilitation, Epilepsy Center for Children and Adolescents, Schoen-Klinik Vogtareuth, Krankenhausstr. 20, D - 83569, Vogtareuth, Germany, jholthausen@schoen-kliniken.de.
Insights
Focal cortical dysplasia (FCD) is a common cause of pediatric focal epilepsy, but its exact prevalence is unclear. Research shows FCD accounts for 76% of malformations of cortical development in epilepsy surgery patients.
Area of Science:
- Neurology
- Neurosurgery
- Pediatric Epilepsy
Background:
- Focal cortical dysplasia (FCD) is a significant cause of intractable focal epilepsy in children.
- The precise prevalence of FCD in pediatric epilepsy is underestimated due to inconsistent classification of malformations of cortical development (MCD).
- Many studies group various MCD subtypes, obscuring the specific contribution of FCD.
Purpose of the Study:
- To determine the prevalence of FCD among patients with MCD undergoing epilepsy surgery.
- To clarify the significance of FCD as a subtype of MCD in surgical epilepsy cases.
Main Methods:
- Analysis of data from the European Epilepsy Brain Bank, comprising 561 patients with MCD.
- Categorization of MCD subtypes, with a focus on identifying FCD.
Main Results:
- Out of 561 operated patients with MCD, 426 (76%) were diagnosed with FCD.
- FCD represents the most frequent subtype of MCD in this cohort.
Conclusions:
- Focal cortical dysplasia is the predominant malformation of cortical development in patients undergoing epilepsy surgery.
- Accurate classification of FCD is crucial for understanding its role in pediatric epilepsy and guiding surgical interventions.
Abstract:
The prevalence of focal cortical dysplasia (FCD) in pediatric patients with focal epilepsy is not exactly known because authors of publications in which the etiologies of epilepsies are listed, but which are not dealing specifically with epilepsy surgery issues, tend to lump together the many kinds of malformations of cortical development (MCD), of which FCDs, because of their relative frequency, are the most relevant subtypes. Out of 561 patients with MCD (children and adults) operated at centers in Europe who do feed data into the "European Epilepsy Brain Bank," 426 (76 %) had FCD.

