Precursor T-Cell Lymphoblastic Leukemia-Lymphoma

**Definition:** A leukemia/lymphoma found predominately in children and young adults and characterized LYMPHADENOPATHY and THYMUS GLAND involvement. It most frequently presents as a lymphoma, but a leukemic progression in the bone marrow is common.

**Tree numbers:** - C04.557.337.428.600.620 - C15.378.508.428.600.620 - C15.604.515.560.600.620 - C20.683.515.528.600.620

**Synonyms:** - Lymphocytic Leukemia, T Cell, Acute - Leukemia, Lymphocytic, Acute, T-Cell - Lymphocytic Leukemia, T-Cell, Acute - T-Cell Leukemia, Acute - Leukemia, T-Cell, Acute - Leukemia, Lymphoblastic, Acute, T Cell - Lymphoblastic Leukemia, Acute, T Cell - Leukemia, Lymphoblastic, Acute, T-Cell - Lymphoblastic Leukemia, Acute, T-Cell - T-ALL - T-Lymphocytic Leukemia, Acute - Precursor T-Cell Lymphoblastic Leukemia - Precursor T-Cell Lymphoblastic Lymphoma - Leukemia, Lymphocytic, Acute T Cell - T-Cell Acute Lymphocytic Leukemia