Table 1 Diagnosis of CLL Clonal... | American Society of Hematology

Table 1

Diagnosis of CLL

Clonal expansion of abnormal B lymphocytes in PB

At least 5 × 10⁹ B lymphocytes/L (5000/μL)

Lymphoid cells ≤ 55% atypical/immature

Low density of surface Ig (IgM or IgD) with κ or λ light chains

B-cell surface antigens (CD19, CD20^dim, CD23)

CD5 surface antigen