Cancer of the blood, most often diagnosed in children between 1 and 14years of age. Leukemia is the most common cause of cancer-related deaths inchildren.
Unrestrained proliferation of a malignant white blood cell characterized by very high numbers of the malignant cells in the blood. Leukemias can be lymphocytic, myelocytic or monocytic.
General term used to describe a group of malignancies of either lymphoid or hematopoietic origin; progressive proliferation of abnormal leukocytes can be found in the blood, the hematopoietic tissues, and other organs.