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[Malformations in cortical development in patients with epilepsy. Neuroimaging of 17 cases]
S Carvalho1, O Brito, E Machado
1Serviços de Nerorradiologia e Neurologia, Hospitais da Universidade de Coimbra, Coimbra.
Abstract:
This article reviews Malformations of Cortical Development (MCD) diagnosed by Magnetic Resonance Imaging (MRI) in a series of patients with epilepsy. This study spans a five year period. The frequency of these malformations was 7.1%. Most of these were focal or multifocal and the most common ones were polymicrogyria (35.3% of the patients), heterotopia (29.4%), and focal cortical dysplasia (29.4%). The frontal lobes were the most frequently affected regions. The various MCD encountered reflect the wide spectrum of MCD leading to epilepsy.
Insights
Malformations of Cortical Development (MCD) occurred in 7.1% of epilepsy patients, diagnosed via MRI. Polymicrogyria and heterotopia were most common, often affecting frontal lobes, highlighting MCD's spectrum in epilepsy.
Area of Science:
- Neurology
- Neuroimaging
- Developmental Neuroscience
Context:
- Epilepsy is a chronic neurological disorder characterized by recurrent seizures.
- Malformations of Cortical Development (MCD) are a significant cause of epilepsy, particularly in pediatric and adult populations.
- Magnetic Resonance Imaging (MRI) is a key diagnostic tool for identifying MCD.
Purpose:
- To review the frequency and types of Malformations of Cortical Development (MCD) diagnosed by Magnetic Resonance Imaging (MRI) in patients with epilepsy.
- To identify the most common MCD subtypes and frequently affected brain regions in this cohort.
- To underscore the diverse spectrum of MCD contributing to epilepsy.
Summary:
- A five-year review of epilepsy patients diagnosed with MCD via MRI revealed a 7.1% frequency.
- The most prevalent MCD subtypes were polymicrogyria (35.3%), heterotopia (29.4%), and focal cortical dysplasia (29.4%).
- Focal or multifocal MCDs were common, with the frontal lobes being the most frequently affected brain regions.
Impact:
- This study highlights the significant prevalence of MCD in epilepsy patients.
- Understanding the spectrum of MCD in epilepsy aids in diagnosis and potential therapeutic strategies.
- The findings emphasize the importance of advanced neuroimaging like MRI in diagnosing MCD-related epilepsy.