B ALL is due to-
ALL are neoplasms composed of immature B (pre B) or T ( pre T) cells which are referred to as lymphoblasts. About 85% are B ALLs which typically manifest as childhood acute leukemias Ref: Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no,.590
T cells
Immature B cells
Immature T cells
Both T & B cells
Haematology