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Living with Aggressive NK-cell leukemia

A rare, fast-growing leukemia linked to the Epstein-Barr virus, mostly affecting teenagers and young adults.

Understanding Aggressive NK-cell leukemia

Aggressive NK-cell leukemia is a rare, fast-growing leukemia linked to the Epstein-Barr virus.

It is also called aggressive NK-cell leukemia/lymphoma. It involves growth of NK cells, a kind of white blood cell, in the blood, bone marrow, liver, and spleen. It mainly affects teenagers and young adults. GARD says it may be the leukemic counterpart of nasal-type extranodal NK/T-cell lymphomas.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

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 Blood Cancer United
  • 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
How is Epstein-Barr virus related to my diagnosis?
Which organs are affected in my case?
Which specialists should be on my care team?

Quick facts

Symptoms usually startAdult

GARD says it is associated with the Epstein-Barr virus. It doesn't describe a gene cause.

Blood

Also known as: aggressive natural killer-cell leukemia; aggressive nk cell leukemia; aggressive nk-cell leukaemia (morphologic abnormality); aggressive nk-cell leukemia (morphologic abnormality); aggressive nk-cell leukemia/lymphoma; aggressive nk-cell lymphoma

Patient organizations

Source: NIH GARD · Aggressive NK-cell leukemiaGARD ID 10493 · 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 Aggressive NK-cell leukemia.

Explore the Aggressive NK-cell leukemia blog

Explore research for Aggressive NK-cell leukemia

Explore actively recruiting Aggressive NK-cell leukemia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Aggressive NK-cell leukemia 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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