What is acute lymphoblastic leukemia (ALL)?

Updated: Jul 17, 2018
  • Author: Karen Seiter, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Answer

Acute lymphoblastic leukemia (ALL) is a malignant (clonal) disease of the bone marrow in which early lymphoid precursors proliferate and replace the normal hematopoietic cells of the marrow. ALL is the most common type of cancer and leukemia in children in the United States. The image below shows B-cell lymphoblastic leukemia/lymphoma (B-ALL).

Diagnostic workup of a patient with pre–B-cell acu Diagnostic workup of a patient with pre–B-cell acute lymphoblastic leukemia. Bone marrow aspiration revealed French-American-British L2 morphology.

See the Childhood Acute Lymphoblastic Leukemia: Diagnosis, Management, and Complications slideshow to help recognize and treat this disease and its associated complications.


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