Juvenile myelomonocytic leukemia overview

Overview
Juvenile myelomonocytic leukemia (JMML) is a serious chronic leukemia (cancer of the blood) that affects children mostly aged 4 and under. The average age of patients at diagnosis is 2 years old. The World Health Organization has included JMML in the category of Myelodysplastic and Myeloproliferative disorders. The name JMML now encompasses all diagnoses formerly referred to as Juvenile Chronic Myeloid Leukemia (JCML), Chronic Myelomonocytic Leukemia of Infancy, and Infantile Monosomy 7 Syndrome.