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Moyamoya Disease 8 C6065948

Published: July 22, 2026Updated: August 26, 2026

This genetic variant of Moyamoya disease involves abnormal narrowing of brain arteries, leading to fragile backup vessels. Both children and adults may be affected, with risk of stroke. Surgical intervention is often recommended.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

Key facts at a glance

ICD-10
G40.909
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

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Transient ischemic attacks (TIA)

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Seizures

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Visual disturbances

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

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

Multiple Burr Hole Surgery

Creation of multiple small holes in the skull covered with vascularized tissue to create neovascularization in diffuse bilateral disease.

surgical
2

Pharmacological management with first-line agents

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

medication
3

Minimally Invasive Direct Anastomosis

Small incision STA-MCA bypass using advanced microsurgical techniques with reduced operative trauma compared to traditional approaches.

procedure

Additional treatment options

Prophylactic Seizure Management

Antiepileptic medications for patients with documented seizure activity or significant cortical involvement seen on imaging.

medication

Acupuncture for Pain Management

Traditional acupuncture approach to manage chronic headache and facial pain associated with Moyamoya disease.

complementary

Anti-inflammatory Nutrition Protocol

Dietary modifications emphasizing omega-3 fatty acids, antioxidants, and reducing inflammatory foods to support vascular health.

dietary

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 Moyamoya Disease 8 C6065948?

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

general

Medication Comparisons

Compare medications used to treat Moyamoya Disease 8 C6065948. 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 26, 2026. · Read our editorial policy