The most frequent FCM B-cell phenotype was CD3<sup>-</sup>CD21<sup>+</sup> CD4<sup>-</sup>CD8<sup>-</sup>CD18<sup>+</sup> CD5<sup>-</sup>CD79<sup>+</sup> in 13/17 DLBCL and the DLBCL+EATL II. This evidence concerns the gene CR2 and diffuse large B-cell lymphoma.