CHEK2 and non-Hodgkin lymphoma: Our results are in accordance with the study by Cybulski, et al (2005), who analyzed tree founder CHEK2 variants, p.I157T, IVS2+1G>A (c.444+1G>A) and c.1100delC, in a large population of cancer patients with various tumor types that included also a subgroup of 120 NHL cases [7].