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Living with Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1

An inherited platelet condition caused by RUNX1 changes, with easy bruising and a higher chance of some blood cancers.

Understanding Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1

Familial platelet disorder with associated myeloid malignancy (FPDMM) is an inherited condition that can cause prolonged bleeding, easy bruising, and a higher risk of blood cancers.

People often have thrombocytopenia (a low platelet count), which can lead to unusual bleeding. The most common related cancer is acute myelogenous leukemia. Myelodysplastic syndrome, T- and B-cell lymphoblastic leukemias, and lymphomas can also occur. Some people also have eczema or psoriasis.

Signs & symptoms

GARD doesn't list a symptom list for this condition, but the summary describes these signs:

  • Easy bruising
  • Prolonged bleeding
  • Low platelet count (thrombocytopenia)
  • Eczema or psoriasis 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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

  4. Connect with expert centers

    The RUNX1 Research Program may keep lists of experts for this condition.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Expert lists: The RUNX1 Research Program
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 The RUNX1 Research Program
  • 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 often should my blood counts and bone marrow be checked?
Should my relatives have genetic testing for RUNX1?
What should I do before surgery or dental work?

Quick facts

It is caused by changes in the RUNX1 gene. It is autosomal dominant, so one changed copy of the gene is enough.

Also known as: familial platelet disorder with propensity to acute myelogenous leukemia; familial platelet syndrome with predisposition to acute myelogenous leukaemia; familial platelet syndrome with predisposition to acute myelogenous leukemia; fpd/aml syndrome; fps/aml syndrome; platelet disorder, aspirin-like

Patient organizations

  • The RUNX1 Research ProgramHereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1 · United States
Source: NIH GARD · Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1GARD ID 15329 · 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 Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1.

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