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Living with Myeloid neoplasm associated with FGFR1 rearrangement

A rare blood cancer (8p11 myeloproliferative syndrome) that can involve both myeloid and lymphoid cells.

Understanding Myeloid neoplasm associated with FGFR1 rearrangement

Myeloid neoplasm associated with FGFR1 rearrangement, or 8p11 myeloproliferative syndrome, is a blood cancer involving different types of blood cells.

People can develop both myeloid cell cancer and lymphoid cell cancer. It can occur at any age. It usually starts as a myeloproliferative disorder (a high number of white blood cells), often with extra eosinophils. Many also develop lymphoma, most often in T cells. Most people go on to develop acute myeloid leukemia. The spleen and liver may become enlarged.

Signs & symptoms

Symptoms vary from person to person. GARD lists these:

  • Tiredness (fatigue)
  • Night sweats
  • High white blood cell count
  • Swollen lymph nodes
  • Enlarged spleen and liver
  • No symptoms in some people

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 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
Should I have testing for the FGFR1 rearrangement?
How often should my blood counts be checked?
Which specialists should be on my care team?

Quick facts

GARD says the condition is linked to an FGFR1 gene rearrangement. It doesn't describe the cause in more detail.

Blood

Also known as: 8p11 myeloproliferative syndrome; 8p11 stem cell leukemia/lymphoma syndrome; 8p11 stem cell syndrome; chromosome 8p11 myeloproliferative syndrome; myeloid and lymphoid neoplasm with fgfr1 abnormality; myeloid and lymphoid neoplasm with fibroblast growth factor receptor 1 abnormality

Patient organizations

Source: NIH GARD · Myeloid neoplasm associated with FGFR1 rearrangementGARD ID 17043 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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