About 90% of<unk>  patients have some sort of genetic abnormality in their leukemia cells that can be identified with laboratory testing. This includes: * 15-20% of patients with neurofibromatosis 1 (NF1) * 25% of patients with mutations in one of the RAS family of oncogenes (only in their leukemia cells) * Another 35% of patients with a mutation in a gene called PTPN11 (again, only in their leukemia cells).
Juvenile myelomonocytic leukemia
T-lymphoblastic leukemia/lymphoma
Acute megakaryoblastic leukemia
Acute myeloblastic leukemia with maturation
Hypodiploid acute lymphoblastic leukemia
B-cell prolymphocytic leukemia
T-cell prolymphocytic leukemia
Precursor B-cell lymphoblastic leukemia