ALL , morphology is a malignancy arising from which cell lineage -
Acute Lymphoblastic Leukemia/ Lymphoma (ALLs) are neoplasms composed of immature B ( pre-B) or T(pre-T) cells ,which are referred to as lymphoblasts. Ref :Robbins pathologic basis of disease ; south east asia edition ;pg:590
Mature B cell
Precursor B cell
Immature T cell
Mixed B cell & T cell
Haematology