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Living with Lymphomatoid granulomatosis

A rare condition with too many B white blood cells that can damage blood vessels, most often in the lungs.

Understanding Lymphomatoid granulomatosis

Lymphomatoid granulomatosis is a rare disorder in which the body makes too many white blood cells called B lymphocytes.

These cells can build up in tissues and damage blood vessels. In many cases, the abnormal B cells contain the Epstein-Barr virus. It is more common in men, usually after age 50. It most often affects the lungs, and sometimes skin, brain and nerves, kidneys, or liver.

Signs & symptoms

Symptoms vary from person to person. GARD describes these:

  • Cough
  • Shortness of breath
  • Chest tightness
  • Fever
  • Weight loss
  • Tiredness (fatigue)

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 blood and bone marrow specialists and cancer specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Blood and bone marrow specialists (hematologists); Cancer specialists (oncologists)
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 rare disease patient organizations for support
  • 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 tests confirm the diagnosis, and does Epstein-Barr virus play a role?
Which specialists should be on my care team?
What follow-up should I have for my lungs and other organs?

Quick facts

Symptoms usually startAdult

The cause is not well understood. GARD says a combination of genetic and immune factors are thought to play a part.

Blood

Also known as: angiocentric immunoproliferative lesion; lg - lymphomatoid granulomatosis; lyg

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Lymphomatoid granulomatosisGARD ID 6943 · 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 Lymphomatoid granulomatosis.

Explore the Lymphomatoid granulomatosis blog

Explore research for Lymphomatoid granulomatosis

Explore actively recruiting Lymphomatoid granulomatosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Lymphomatoid granulomatosis 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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