Mixed Phenotype Acute Leukemia

**Semantic type:** Neoplastic Process

**Definition:** An acute leukemia of ambiguous lineage. It is characterized by the presence of either separate populations of blasts of more than one lineage, or one population of blasts co-expressing markers of more than one lineage.

**Synonyms:** - MPAL - MPAL - MPAL - MPAL - Mixed phenotype (biphenotypic) acute leukemia