B Lymphoblastic Leukemia/Lymphoma with ETV6-RUNX1-Like Features

**Semantic type:** Neoplastic Process

**Definition:** B lymphoblastic leukemia/lymphoma characterized by a gene-expression profile similar to that of ETV6-RUNX1-positive B lymphoblastic leukemia/lymphoma, absence of the pathognomonic ETV6-RUNX1 rearrangement, and rearrangements or deletions of ETV6 and IKZF1 genes.

**Synonyms:** - B Lymphoblastic Leukemia/Lymphoma with ETV6::RUNX1-Like Features - B-Lymphoblastic Leukemia/Lymphoma with ETV6-RUNX1-Like Features - B-Lymphoblastic Leukemia/Lymphoma with ETV6::RUNX1-Like Features