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Living with Primary central nervous system lymphoma

A rare lymphoma that starts in the lymph tissue of the brain or spinal cord, and sometimes the eye, mostly in adults.

Understanding Primary central nervous system lymphoma

Primary central nervous system lymphoma is a rare form of non-Hodgkin lymphoma in which cancer cells develop in the lymph tissue of the brain or spinal cord.

Because the eye is close to the brain, it can also start in the eye (ocular lymphoma). Symptoms depend on which parts of the central nervous system are affected. It usually appears in adults and older adults. People with a weakened immune system, such as those with AIDS or an organ transplant, appear to have a higher risk.

Signs & symptoms

Symptoms vary based on which parts of the nervous system are affected. GARD lists these:

  • Headaches
  • Nausea and vomiting
  • Seizures
  • Arm or leg weakness
  • Confusion
  • Double vision or hearing loss

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, brain and nervous system 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); Brain and nervous system specialists (neurologists); 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 Blood Cancer United 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 parts of my brain, spinal cord or eyes are affected?
What treatment options are available?
Does my immune health change my care plan?

Quick facts

Symptoms usually startAdult and as an Older Adult

GARD says the exact cause is poorly understood. A weakened immune system, such as with AIDS or after an organ transplant, appears to raise the risk.

NeurologicalBlood

Also known as: central nervous system lymphoma; cns lymphoma; lymphoma of central nervous system; malignant lymphomas of cns; malignant lymphomas of the cns; microglioma

Patient organizations

Source: NIH GARD · Primary central nervous system lymphomaGARD ID 9318 · 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 Primary central nervous system lymphoma.

Explore the Primary central nervous system lymphoma blog

Explore research for Primary central nervous system lymphoma

Explore actively recruiting Primary central nervous system lymphoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Primary central nervous system 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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