B-cell acute lymphoblastic leukemia with t(1;19)(q23;p13.3); E2A-PBX1 (TCF3-PBX1)
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.