NCIt definition : The most frequent type of acute lymphoblastic leukemia. Approximately 75% of cases
occur in children under six years of age. This is a good prognosis leukemia. In the
pediatric age group the complete remission rate is approximately 95% and the disease
free survival rate is 70%. Approximately 80% of children appear to be cured. In the
adult age group the complete remission rate is 60-85%. (WHO, 2001);
Alternative definition : NCI-GLOSS: An aggressive (fast-growing) type of leukemia (blood cancer) in which too
many B-cell lymphoblasts (immature white blood cells) are found in the bone marrow
and blood. It is the most common type of acute lymphoblastic leukemia (ALL).; NICHD: An acute lymphoblastic leukemia of B-lineage origin.;
Neoplastic status : Malignant;
ICD-O code : 9836/3;
Codes from synonyms : CDR0000543509; CDR0000543504; 10003890; CDR0000524192;