Comparison of normal plasma cell population size in monoclonal gammopathy of undetermined significance (MGUS) and plasma cell myeloma (PCM). MGUS cases (red) have a significantly higher CD19(+) plasma cell population as compared to PCM cases (green). There are no significant differences in CD56 and CD45 expression. Horizontal bars represent mean values.
Olteanu et al. BMC Clinical Pathology 2008 8:13 doi:10.1186/1472-6890-8-13