B Lymphoblastic Leukemia/Lymphoma, BCR-ABL1-Like

**Semantic type:** Neoplastic Process

**Definition:** B lymphoblastic leukemia/lymphoma characterized by a gene-expression profile similar to that of BCR-ABL1-positive B lymphoblastic leukemia/lymphoma, absence of the pathognomonic BCR-ABL1 rearrangement, alterations of lymphoid transcription factor genes, and a poor outcome.

**Synonyms:** - B Lymphoblastic Leukemia/Lymphoma with BCR-ABL1-Like Features - B Lymphoblastic Leukemia/Lymphoma with BCR::ABL1-Like Features - B Lymphoblastic Leukemia/Lymphoma with Translocations Involving Tyrosine Kinases or Cytokine Receptors - B Lymphoblastic Leukemia/Lymphoma, BCR::ABL1-Like - B Lymphoblastic Leukemia/Lymphoma, Philadelphia-like - B-Lymphoblastic Leukemia/Lymphoma with BCR-ABL1-Like Features - B-Lymphoblastic Leukemia/Lymphoma with BCR::ABL1-Like Features - B-Lymphoblastic Leukemia/Lymphoma, Philadelphia-like