The morphological characteristics of bone marrow infiltration lymphoma cells: large cell (55.4%); small cell (23.1%); medium cell (16.9%); mixture cell (small cell and large cell) (4.6%); cleaved cells (11.8%); noncleaved cells (21.6%); immunoblastic (15.7%); Centroblastic (36.3%); cell mixture (Immunoblastic and Centroblastic) was 15.7%.