Flow cytometry analysis in LGL leukemia. (A) Blue: Normal nonclonal CD3⁺ T cells showing a polyclonal Vβ repertoire pattern. Red: LGL population showing a CD3⁺/CD8⁺/CD5^dim phenotype with a unique clonal Vβ7.1 expression (> 92%). (B) The NK CD3⁻ LGL population strongly expresses the CD94/KIR ag.