CD20 is a CD marker—a molecule on the cell surface that can be used to identify and type a particular cell in the body. CD20 is found on the surface of B cells (a type of immune system cell).

As a marker of minimal residual disease in B-cell acute lymphoblastic leukemia (B-ALL), CD58 has been reported in B-ALL at diagnosis and short-term follow-ups after standard chemotherapies. However, ...