https://doi.org/10.1351/goldbook.12837
Highly aggressive, undifferentiated form of lymphoid malignancy derived from a progenitor cell that is thought to be able to give rise to both T- and B-cell lineages.
Note: Most of these leukemias show partial differentiation toward the B-cell lineage (so-called B-ALL) whereas a minority show features of T cells (T-ALL).