Hypothetical grouping of mucosa-associated B-cell lymphomas on the basis of molecular cytogenetics.

“+” refers to gains and “−,” to losses of chromosomal material on the given chromosomal region; “*” refers to aberrations significantly more frequent in giMZBLplusLBCL. (Figure slightly modified from Barth et al,2 ©2001 Wiley-Liss Inc, a subsidiary of John Wiley & Sons. Used by permission.)