Mixed-phenotype acute leukemia (MPAL) is a group of blood cancers (leukemia) which have combined features of myeloid and lymphoid cancers. It is a rare disease, constituting about 2–5% of all leukemia cases. It mostly involve myeloid with either of T lymphocyte or B lymphocyte progenitors, but in rare cases all the three cell lineages. Knowledge on the cause, clinical features and cellular mechanism is poor, making the treatment and management (prognosis) difficult.
