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Living with Aneurysm, intracranial berry, 2

A rare condition in which balloon-like bulges form in brain arteries, often where the arteries split.

Understanding Aneurysm, intracranial berry, 2

Aneurysm, intracranial berry, 2 is a rare disease of the arteries (blood vessels) inside the brain.

It causes small balloon-like bulges (saccular outpouchings), often where arteries split. If one of these bulges breaks open, it can cause bleeding around the brain, which can cause serious illness.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with The Aneurysm and AVM Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
How will an aneurysm be found and monitored?
What signs of bleeding around the brain need emergency care?
Should family members be screened?

Quick facts

GARD doesn't describe a cause for this condition yet.

Also known as: anib2

Patient organizations

Source: NIH GARD · Aneurysm, intracranial berry, 2GARD ID 10033 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Aneurysm, intracranial berry, 2.

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  • Eligibility is confirmed by the study team

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