Also known as: Posttransplant Lymphoproliferative Disorder / Post Transplant Lymphoproliferative Disorder / Post-transplant Lymphoproliferative Disease (PTLD) / Post-Transplant Lymphoproliferative Disorder / Post-Transplant Lymphoproliferative Disease / Post-transplant lymphoproliferative disorder (PTLD) / Post-transplantation Lymphoproliferative Disorder / Post-transplantation Lymphoproliferative Disorders / PTLDs / Post-transplantation lymphoproliferation (morphologic abnormality) / Lymphoproliferative disorder following transplantation (disorder)