However, the seminal discoveries of MYD88 (L265P) mutation, present in the vast majority (85-100 %), and CXCR4 (WHIM) mutations, identified in nearly a third of patients (who almost exclusively harbor the MYD88 (L265P) variant), have laid a solid foundation for a paradigm shift in our diagnostic and therapeutic approaches towards this rare hematologic malignancy.
Although the absence of the MyD88L265P somatic mutation in our SS cohort does not exclude a common germline susceptibility gene in SS, it might suggest a distinct operating pathogenetic mechanism in SS-related lymphoma compared with WM and other hematological malignancies.
Recent genome-wide association and sequencing studies have identified a series of promising oncogenes including IDH1, IDH2, DNMT3A, and MYD88 in hematologic malignancies.