Leukemia, Lymphoid [Disease/Finding] Precursor Cell Lymphoblastic Leukemia-Lymphoma [Disease/Finding] M0502706 D054198 Precursor Cell Lymphoblastic Leukemia-Lymphoma A neoplasm characterized by abnormalities of the lymphoid cell precursors leading to excessive lymphoblasts in the marrow and other organs. It is the most common cancer in children and accounts for the vast majority of all childhood leukemias. Leukemia, Lymphoid, Acute Lymphocytic Leukemia, Acute Leukemia, Lymphoblastic, Acute Leukemia, Lymphoblastic Lymphoblastic Lymphoma Lymphoma, Lymphoblastic C1961102 Lymphoblastic Leukemia, Acute Precursor Cell Lymphoblastic Leukemia-Lymphoma Lymphoblastic Leukemia N0000181267 CMSHM0502706 Acute Lymphoid Leukemia Leukemia, Lymphocytic, Acute 1024792