BCL2 and aneurysmal bone cyst: The expression of BCL2 protein is not always correlated with the t(14;18); Iqbal et al16 found that BCL2 protein expression was observed in 44% of GCB DLBCL and 62% of ABC DLBCL, and was correlated with a poor outcome with R-CHOP standard therapy only in the GCB subtype and not in the ABC subtype.