B Acute Lymphoblastic Leukemia with HLF Rearrangement

**Semantic type:** Neoplastic Process

**Definition:** An exceptionally rare childhood B acute lymphoblastic leukemia associated with HLF gene rearrangement. The prognosis is poor.

**Synonyms:** - B-ALL with HLF Rearrangement - B-Acute Lymphoblastic Leukemia with HLF Rearrangement