FIGURE 4

Flow cytometry dot plots of the 1998 case. A, the lymphoid population is divided into a smaller cell gate (R1) and a larger cell gate (R2). B, analysis for CD5 and CD20 (R1 shows a mixture of CD5^bright/CD20^dim and CD20-negative cells while R2 shows a predominantly CD5^dim/CD20^bright population). C, analysis for CD7 and CD2 (both R1 and R2 populations are positive for both CD7 and CD2).