Precursor B-cell lymphoblastic leukemia

Precursor B-cell lymphoblastic leukemia
A Wright's stained bone marrow aspirate smear from a person with precursor B-cell acute lymphoblastic leukemia.
Specialty	Oncology

Precursor B-cell lymphoblastic leukemia is a form of lymphoid leukemia in which too many B-cell lymphoblasts (immature white blood cells) are found in the blood and bone marrow. It is the most common type of acute lymphoblastic leukemia (ALL). It is sometimes additionally classified as a lymphoma, as designated leukemia/lymphoma. ALL is the most prevalent childhood malignancy, with precursor B-cell ALL (B-ALL) accounting for approximately 75–80% of newly diagnosed pediatric ALL cases.