In the first group (A), FCI revealed 100% concordance with IHC in the sub-typing of all FCM-diagnosed B-cell lymphoma cases (32 cases) except for a single case which was diagnosed as DLBCL by FCI and was FL by histopathology although this case showed medium to large FSc denoting a large cell size By FCM and IHC was inconclusive for CD10 and negative for BCL-2. This evidence concerns the gene BCL2 and diffuse large B-cell lymphoma.