Table 1.
IgM monoclonal gammopathy of any concentration |
Bone marrow infiltration by small lymphocytes showing plasmacytoid or plasma cell differentiation |
Intertrabecular pattern of bone marrow infiltration |
Cell Surface Markers |
IgM+CD5±CD10−CD19+CD20+CD22+CD23−CD25+CD27+FMC7+ |
CD103−CD138−. Variations from this phenotypic profile can occur. |