BCR and MALT lymphoma: In MALT lymphomas of the salivary gland (SGMZL), there is a clear skewed usage of IGHV1-69/J4 (55%) or IGHV3-7/J3 (15%) rearrangements, and this together with other less frequent (IGHV4-59/J2(J5) and IGHV3-30/JH4) rearrangements indicates that most salivary gland MALT lymphomas express BCR that potentially bears RF activities [32,33].