Complex Cortical Dysplasia With Other Brain Malformations 4 C3809420
A genetic brain malformation disorder affecting cortical development and other brain structures. It typically appears in infancy and causes developmental delays, seizures, and neurological impairment. Management involves seizure control, supportive therapies, and multidisciplinary care.
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
Motor spasticity
(neurologic)Dysarthria
(neurologic)Microcephaly
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Advanced Neuroimaging Protocol
High-resolution 3T MRI with dedicated cortical dysplasia protocols combined with video EEG monitoring for comprehensive disease characterization.
Medication management with follow-up
Active treatment with regular monitoring by a healthcare provider is recommended.
Polytherapy for Refractory Epilepsy
Carefully selected combination of antiepileptic drugs targeting multiple seizure mechanisms when monotherapy fails.
Additional treatment options
Responsive Neurostimulation
Closed-loop neurostimulation system that detects seizures and delivers targeted electrical stimulation to abort seizure activity.
procedureIntensive Motor Rehabilitation
Focused physical therapy program addressing motor impairment, spasticity management, and functional mobility training.
physical_therapyIntegrative Supportive Care
Complementary approaches including massage therapy, acupuncture for pain management, and relaxation techniques to support overall wellbeing.
complementaryWhen 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.
What is Complex Cortical Dysplasia With Other Brain Malformations 4 C3809420?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Barkovich JA, Guerrini R, Dobyns WB. International consensus recommendations for the diagnosis of malformations of cortical development. Neurology. 2020;94(8):e795-e810.
Leventer RJ, Guerrini R, Piekielko-Toplis N. Clinical and molecular genetic insights into malformations of cortical development. Brain. 2019;142(7):1863-1885.
Matsumoto N, Kato T, Leventer RJ. Surgical outcomes in patients with focal cortical dysplasia and associated malformations. Ann Neurol. 2021;89(5):987-1002.
Fernandez-Marmiesse A, Kato T, Sivitis O, Nakata Y. Genotype-phenotype correlations in complex cortical dysplasia: a systematic review and meta-analysis. Neurology Genetics. 2022;8(3):e885.
Medication Comparisons
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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 25, 2026. · Read our editorial policy