B Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); TCF3-PBX1

**Semantic type:** Neoplastic Process

**Definition:** A B-cell acute leukemia characterized by the presence of lymphoblasts that carry a translocation between the E2A gene on chromosome 19 and the PBX1 gene on chromosome 1. It occurs in children and less often in adults.

**Synonyms:** - B Acute Lymphoblastic Leukemia with TCF3-PBX1 Fusion - B Acute Lymphoblastic Leukemia with TCF3::PBX1 Fusion - B Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); E2A-PBX1 (TCF3-PBX1) - B Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); E2A-PBX1 (TCF3-PBX1) - B Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); TCF3::PBX1 - B-ALL with t(1;19)(q23;p13.3); TCF3-PBX1 - B-ALL with t(1;19)(q23;p13.3); TCF3::PBX1 - B-Acute Lymphoblastic Leukemia with TCF3-PBX1 Fusion - B-Acute Lymphoblastic Leukemia with TCF3::PBX1 Fusion - B-Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); E2A-PBX1 (TCF3-PBX1) - B-Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); TCF3-PBX1 - B-Cell Acute Lymphoblastic Leukemia with t(1;19)(q23;p13.3); E2A-PBX1 (TCF3-PBX1)