Incidence rates of primary central nervous system lymphomas (PCNSL) in the U.S. were reported to have increased dramatically during the 1980s and early 1990s. Recent reports portray a continuation of this trend. With potential etiologic factors related to immunosuppression changing, the authors hypothesized that the incidence of PCNSL would be stabilizing.
Division of Pediatric Hematology/Oncology and Bone Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
