Parameter Oct2 + / Total (%) BCL6 + / Total (%) IRF8 + / Total (%) OCAB + / Total (%) PU.1 + / Total (%) IPI           1 27/33 (81.8) 20/33 (60.6) 21/33 (63.6) 14/33 (42.4) 7/33 (21.2) 2 18/19 (94.7) 11/19 (57.9 13/19 (68.4) 9/19 (47.4) 4/19 (21.0) 3 13/14 (92.8) 5/14 (35.7) 7/14 (50.0) 10/14 (71.4) 4/14 (28.6) 4 5/6 (83.3) 3/6 (50.0) 2/6 (33.3) 5/6 (83.3) 3/6 (50.0)

Pearson Chi Square Test: NS

Table 3: No association was found between the expression of Oct2, BCL6, IRF8, OCAB or PU.1 and the International Prognosis Index score, currently considered as the main prognosis indicator in these patients.