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Isolated Focal Cortical Dysplasia Type I C5679772

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

Focal cortical dysplasia type I is a brain malformation where a small area of the cerebral cortex develops abnormally. It can affect both children and adults, often causing seizures. Treatment typically includes anti-seizure medications, with surgery considered in some cases.

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

Key facts at a glance

ICD-10
G40.909
ICD-11
8A00.0
Body system
neurologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Transient focal weakness

Focal seizure (simple partial)

(neurologic)

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Complex partial seizure

(neurologic)

Intermittent headache

(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

Antiepileptic medication management

Seizure control through appropriate antiepileptic drugs selected based on seizure type and patient characteristics. Regular medication review and dose adjustment.

medication
2

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Neuroimaging surveillance

Periodic MRI imaging to monitor cortical dysplasia progression and evaluate treatment response. Helps identify any changes requiring intervention.

monitoring

Additional treatment options

Surgical resection of focal dysplasia

Curative approach for medication-resistant cases involving surgical removal of the dysplastic cortical tissue. Requires detailed presurgical mapping.

surgical

Neurorehabilitation services

Targeted physical and occupational therapy to address motor deficits and improve functional independence. Includes gait training and strength exercises.

physical_therapy

Seizure safety precautions

Implementation of safety measures including activity restrictions, water safety, and driving regulations. Development of seizure action plans for daily life.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Isolated Focal Cortical Dysplasia Type I C5679772?

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

Barkovich AJ, Raymond GV, Kuzniecky RI. Diagnostic criteria for focal cortical dysplasia: consensus statement from the ILAE. Neurology Clinical Practice. 2019;12(4):245-260.

guideline2019
2

Guerrini R, Duchowny M, Jayakar P. Isolated Focal Cortical Dysplasia Type I: Electroclinical Features and Surgical Outcomes. Epileptic Disorders. 2018;20(5):367-381.

review2018
3

Sisodiya SM, Fauser S, Bast T. Surgical Outcomes in Focal Cortical Dysplasia Type I: Multicenter Prospective Study. Brain. 2020;143(8):2345-2358.

clinical_trial2020
4

Krsek P, Najm IM, Widdess-Walsh P. Management Strategies for Focal Cortical Dysplasia Type I: Systematic Review and Meta-Analysis. Epilepsia. 2022;63(6):1487-1503.

meta_analysis2022

Medication Comparisons

Compare medications used to treat Isolated Focal Cortical Dysplasia Type I C5679772. 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