Precursor Cell Lymphoblastic Leukemia-Lymphoma

**Definition:** 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.

**Tree numbers:** - C04.557.337.428.600 - C15.378.508.428.600 - C15.604.515.560.600 - C20.683.515.528.600

**Synonyms:** - Leukemia, Lymphoid, Acute - Lymphoblastic Leukemia - Lymphoblastic Leukemia, Acute - Lymphoblastic Lymphoma - Lymphocytic Leukemia, Acute - Lymphoma, Lymphoblastic - Acute Lymphoblastic Leukemia - Acute Lymphoid Leukemia - Leukemia, Acute Lymphoblastic - Leukemia, Lymphoblastic - Leukemia, Lymphocytic, Acute - Leukemia, Lymphoblastic, Acute