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Living with Mucosa-associated lymphoma

A slow-growing type of non-Hodgkin lymphoma that most often starts in the digestive tract.

Understanding Mucosa-associated lymphoma

Mucosa-associated lymphoma is a slow-growing type of non-Hodgkin lymphoma that starts outside the lymph nodes.

It is made of small B-lymphocytes (a type of white blood cell). The digestive tract is the most common site, but it can also involve the lung, head and neck, area around the eye, skin, thyroid, and breast. Stomach involvement is linked with H. pylori infection. It usually occurs in adults.

Signs & symptoms

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

  • B-cell lymphoma
  • Fatigue and fever
  • Weight loss
  • Heavy sweating
  • Nausea and vomiting
  • Anemia

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 HealthTree 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
Where in the body is the lymphoma, and has it spread?
Should I be tested for H. pylori infection?
What treatment options and follow-up do you recommend?

Quick facts

Symptoms usually startAdult

GARD says gastric involvement is associated with H. pylori infection. GARD does not list a specific gene.

Blood

Also known as: extranodal marginal zone b-cell lymphoma; extranodal marginal zone b-cell lymphoma of mucosa-associated lymphoid tissue; extranodal marginal zone b-cell lymphoma of mucosa-associated lymphoid tissue (malt-lymphoma); extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue; immunocytoma; lymphoma of mucosa-associated lymphoid tissue

Patient organizations

Source: NIH GARD · Mucosa-associated lymphomaGARD ID 6485 · 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 Mucosa-associated lymphoma.

Explore the Mucosa-associated lymphoma blog

Explore research for Mucosa-associated lymphoma

Explore actively recruiting Mucosa-associated lymphoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Mucosa-associated lymphoma 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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