B Acute Lymphoblastic Leukemia with MEF2D Rearrangement

**Semantic type:** Neoplastic Process

**Definition:** B acute lymphoblastic leukemia associated with MEF2D gene rearrangement. The prognosis is poor.

**Synonyms:** - B-ALL with MEF2D Rearrangement - B-Acute Lymphoblastic Leukemia with MEF2D Rearrangement