Notably, in addition to HLA class II genes (which might contribute to chronic inflammation), we found a distinct association between JIA and Hodgkin lymphoma through a set of genes in 6p21.3 (FKBPL, PBX2, AGER); and chronic lymphocytic leukaemia through the BAK1 gene. The gene discussed is PBX2; the disease is B-cell chronic lymphocytic leukemia.