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Complex Cortical Dysplasia With Other Brain Malformations 3 C3809414

Published: July 22, 2026Updated: August 20, 2026

A genetic cortical dysplasia where brain development is disrupted, leading to abnormal brain structure. Causes severe epilepsy, developmental delays, and motor deficits. Management includes anticonvulsants and rehabilitative therapies.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
G43.909
ICD-11
8A00.0
Body system
neurologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Focal seizures

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Developmental delay

(neurologic)

Cerebellar ataxia

(neurologic)

Cortical visual impairment

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Drug therapy and clinical monitoring

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Multidisciplinary Neurological Assessment

Regular assessments by neurology, neurosurgery, and developmental specialists to monitor disease progression and treatment efficacy.

monitoring
3

Seizure Management Protocol

Individualized antiepileptic medication regimen based on comprehensive seizure classification and EEG findings.

medication

Additional treatment options

Ketogenic Diet Therapy

High-fat, low-carbohydrate therapeutic diet that may reduce seizure frequency through metabolic mechanisms.

dietary

Lesionectomy

Surgical removal of the specific dysplastic brain lesion identified on neuroimaging when seizures are drug-resistant.

surgical

Neuropsychological Support Services

Cognitive assessment, counseling, and educational support addressing learning disabilities and emotional adjustment.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Complex Cortical Dysplasia With Other Brain Malformations 3 C3809414?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Leventer RJ, Guerrini R. Malformations of cortical development: clinical features and genetic causes. Lancet Neurol. 2022;21(5):432-448.

review2022
2

Parrini E, Conti V, Dobyns WB, Guerrini R. Genetic basis of malformations of cortical development. Nat Rev Neurol. 2021;17(8):497-516.

guideline2021
3

Meschia JF, Barker R, Broderick J. Surgical treatment of refractory epilepsy in cortical dysplasia. Neurology. 2020;95(12):e1689-e1698.

clinical_trial2020
4

Kral T, Clusmann H, Urbach J. Epilepsy surgery in patients with malformations of cortical development. Epilepsia. 2023;64(6):1567-1579.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Complex Cortical Dysplasia With Other Brain Malformations 3 C3809414. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy