Juvenile Myelomonocytic Leukemia (JMML)

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Contact the Leukemia Program

Juvenile Myelomonocytic Leukemia (JMML) is a rare type of blood cancer that occurs when bone marrow production of white blood cells becomes severely disregulated. In children with JMML, the bone marrow – the soft, spongy center of the bones responsible for creating blood cells – produces immature white blood cells that grow too rapidly and keep reproducing even when they run out of space. This crowds out healthy bone marrow cells and can lead to symptoms such as infections, anemia and bleeding. Currently, the only cure for JMML is stem cell transplant.

JMML Treatment at Dana-Farber/Boston Children's

Patients with JMML are treated at Dana-Farber/Boston Children's through the Leukemia Program, one of the top programs worldwide for pediatric leukemia. We also have one of the largest and most experienced pediatric stem cell transplant programs in the U.S.

Learn more

Find in-depth details on JMML on the Dana-Farber/Boston Children’s website, including answers to:

  • How is JMML diagnosed?
  • What is the best treatment for JMML?
  • What is the latest research on JMML?
  • What is the long-term outlook for children with JMML?
We are grateful to have been ranked #1 on U.S. News & World Report's list of the best children's hospitals in the nation for the third year in a row, an honor we could not have achieved without the patients and families who inspire us to do our very best for them. Thanks to you, Boston Children's is a place where we can write the greatest children's stories ever told.”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital
300 Longwood Avenue, Boston, MA 02115
For Patients: 617-355-6000
For Referring Providers: 844-BCH-PEDS | 844-224-7337