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Idh Mutant And 1p 19q Codeleted Oligodendroglioma C4288558

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

A type of brain tumor arising from supportive brain cells, carrying specific genetic markers that guide treatment. It typically affects adults and may cause seizures, headaches, or neurological changes. Treatment often combines surgery, radiation, and chemotherapy with generally favorable outcomes.

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

Key facts at a glance

ICD-10
C80.1
ICD-11
2A00.0
Body system
oncologic
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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Seizures

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Headaches

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Focal neurological deficits

Generalized symptoms

(oncologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Cognitive decline

(Neurological)

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

Maximal safe surgical resection

Neurosurgical removal of as much tumor tissue as possible while preserving neurological function. Extent of resection is a critical prognostic factor in oligodendroglioma outcomes.

surgical
2

Medication management with follow-up

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

medication
3

Chemotherapy for 1p/19q codeleted oligodendroglioma

PCV chemotherapy regimen or temozolomide following surgery and radiation. The 1p/19q codeletion predicts favorable response to chemotherapy in this tumor type.

medication

Additional treatment options

Radiation therapy

Focal radiation therapy to the tumor bed and surrounding margins, typically delivered after surgery and potentially combined with chemotherapy in adjuvant or concurrent protocols.

procedure

Long-term tumor surveillance

Regular MRI imaging and clinical monitoring for tumor recurrence or progression, with early detection allowing for timely intervention and treatment modification.

monitoring

Neuro-oncology support services

Psychological counseling and cognitive rehabilitation addressing the emotional impact of brain tumor diagnosis and potential treatment-related cognitive changes, including memory and attention difficulties.

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 Idh Mutant And 1p 19q Codeleted Oligodendroglioma C4288558?

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 Idh Mutant And 1p 19q Codeleted Oligodendroglioma C4288558. 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