Diffuse,  small cleaved cell                                   Diffused lymphocytic
                                                                         poorly differentiated

Diffuse large cell (cleaved or non-cleaved)             Diffuse histiocytic

High-Grade
Immunoblastic,  diffuse large cell                          Diffuse histiocytic

Lymphoblastic                                                    Diffuse lymphoblastic
(convoluted or non-convoluted)
                  
Small non-cleaved cell,                                        Diffuse undifferentiated,
Burkitt's or non-Burkitt's                                      Burkitt's or non-Burkitt's