A malignant lymphocytic neoplasm of b-cell or t-cell lineage involving primarily the bone marrow and the peripheral blood. This category includes precursor or acute lymphoblastic leukemias and chronic leukemias.
A progressive, proliferative disease of blood cells, originating from lymphoid cells.
A type of cancer in which the bone marrow makes too many lymphocytes (white blood cells).
Leukemia associated with hyperplasia and overactivity of the lymphoid tissue; there are increased numbers of circulating malignant lymphocytes and lymphoblasts.
Leukemia associated with hyperplasia of the lymphoid tissues and increased numbers of circulating malignant lymphocytes and lymphoblasts.