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Living with Familial visceral amyloidosis, Ostertag type

A group of rare inherited kidney diseases in which abnormal protein (amyloid) builds up in organs, especially the kidneys.

Understanding Familial visceral amyloidosis, Ostertag type

Familial visceral amyloidosis, Ostertag type is a group of rare kidney diseases in which amyloid protein deposits build up in one or more organs.

Kidney problems that can lead to chronic kidney disease and kidney failure are a common sign. Other signs depend on which organ is affected and which amyloid protein is deposited. It can show up at any time in life.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Kidney disease (nephropathy)
  • Reduced kidney filtering
  • High blood pressure
  • Amyloid deposits in the kidneys
  • Kidney inflammation
  • Digestive tract problems

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

    Specialists who may be involved include autoimmune and inflammatory disease specialists, genetic specialists and kidney specialists.

  3. Consider genetic testing

    Changes in FGA are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Amyloidosis Support Groups Inc. and Amyloidosis Foundation may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists); Genetic specialists (geneticists); Kidney specialists (nephrologists)
Expert care
Expert lists: Amyloidosis Support Groups Inc., Amyloidosis Foundation
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 Amyloidosis Support Groups Inc. and other patient organizations
  • 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
Which type of amyloid do I have?
How often should my kidney function be checked?
Should my relatives have genetic testing for FGA?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant
GenesFGA

Changes in the FGA gene cause it. It is autosomal dominant, which means one changed copy of the gene is enough.

GeneticKidney

Also known as: amyld2; amyloid nephropathy of ostertag; amyloidosis viii; amyloidosis, 3 or more types; amyloidosis, familial renal; amyloidosis, hepatic and systemic

Patient organizations

Source: NIH GARD · Familial visceral amyloidosis, Ostertag typeGARD ID 8282 · 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

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