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Living with Immunoglobulin G4-related sclerosing disease

A rare immune-related disease in adults that can affect many organs, including the pancreas and salivary glands.

Understanding Immunoglobulin G4-related sclerosing disease

Immunoglobulin G4-related sclerosing disease is a rare immune-related disease that can affect many organs.

It can cause inflammation of the pancreas, swelling in or around an organ, enlarged salivary glands, swollen lymph nodes, and skin changes. People may also have allergies or asthma. It usually begins in adulthood.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Its summary describes:

  • Inflamed pancreas
  • Swelling in or around an organ
  • Enlarged salivary glands
  • Swollen lymph nodes
  • Skin changes
  • Allergies or asthma

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.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Global Autoimmune Institute and IgG4ward! may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists)
Expert care
Expert lists: Global Autoimmune Institute, IgG4ward!
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 Global Autoimmune Institute 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 of my organs are affected?
Which tests confirm IgG4-related disease?
Which specialists should be involved in my care?

Quick facts

Symptoms usually startAdult

GARD says the disease has no known cause.

Also known as: igg4-rd; igg4-related disease; igg4-related sclerosing disease; igg4-related systemic disease

Patient organizations

Source: NIH GARD · Immunoglobulin G4-related sclerosing diseaseGARD ID 12521 · 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 Immunoglobulin G4-related sclerosing disease.

Explore the Immunoglobulin G4-related sclerosing disease blog

Explore research for Immunoglobulin G4-related sclerosing disease

Explore actively recruiting Immunoglobulin G4-related sclerosing disease studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Immunoglobulin G4-related sclerosing disease with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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