BRCA2 and non-Hodgkin lymphoma: Conversely, a few studies have suggested that the BRCA genes are associated with increased risk of NHL, HL, or MM including BRCA1 (7.7-fold increase) and BRCA2 (5.9-fold increase) in the Japanese population [26] and BRCA2 (3.3-fold increase) in pediatric or adolescent lymphoma survivors from St.