• CD117: reactive mast cell
• CD 25: neoplastic mast cell
• CALLA, common acute lymphoblastic leukemia antigen
• LCA: reactive lymphocytes

Granulocytes

B Cells

• CD34+, CD10+, TdT+, CD79a+, CD19− common lymphoid progenitor: early B stage.
• CD34+, CD19+, CD10+, TdT+, CD20−, cIgM−: pro–B stage.
• After downregulation of CD34 and TdT, they become CD34−, CD19+, CD10+, CD20 heterogeneous pre-B that can be further subdivided into I and II subsets.
• CD34−, CD19+, CD20+, CD10dim/−, IgM+ IM B cells.
• After expression of light chains, cells become CD10−, CD19+, CD20+, IgM+, IgD+ mature B cells.