Plasmablastic lymphoma following transplantation.

Posttransplant lymphoproliferative disorder is a serious complication following solid organ as well as hematopoietic stem cell transplantation due to prolonged immunosuppressive therapy. Plasmablastic lymphoma, although classically associated with HIV infection, has since been described in transplant patients as a variant of posttransplant lymphoproliferative disorder with varying clinical presentations. Here we add two additional cases to the literature: one following lung transplantation and one following pancreatic transplantation. In addition, the demographic, therapeutic, and immunophenotypic characteristics from prior reported cases are summarized.