نتایج جستجو برای: ptld post
تعداد نتایج: 404553 فیلتر نتایج به سال:
Post-transplant lymphoproliferative disorder (PTLD) is a clearly recognized and potentially life threatening complication after solid organ or bone marrow transplantation. It comprises a spectrum of diseases ranging from infectious mononucleosis and lymphoid hyperplasia to highly aggressive lymphoma. The disease has increased clinical importance in view of the constantly rising number of organ ...
Posttransplant lymphoproliferative disease (PTLD) is a potentially fatal complication after (solid organ) transplantation, which is highly associated with Epstein-Barr virus (EBV). The EBV-specific cytotoxic T cell response that is essential in controlling the virus in healthy individuals is suppressed in transplant recipients using immunosuppressive drugs. A primary EBV infection in EBV-serone...
Although rare, gastrointestinal posttransplant lymphoproliferative disorder (PTLD) can lead to abdominal pain or gastrointestinal bleeding in patients with a history of solid-organ transplantation. We describe a case of isolated gastrointestinal PTLD in a patient who presented with acute on chronic iron deficiency anemia 26 years after heart transplant. A comprehensive endoscopic evaluation wit...
WE HAVE PREVIOUSLY estimated a 20% frcquency of Epstein-Barr virus (EBV) related posttransplant lymphoproliferative disorders (PTLD) in small bowel allograft recipients. I The present study compares rates of PTLD among pediatric and adult recipients of isolated or composite small bowel allografts. We also report PTLD frequency before and after the institution of quantitative EBV monitoring and ...
A 16-yr-old girl received liver transplantation for fulminant hepatitis. Aplastic anemia developed, and she received hematopoietic stem cell transplantation (HSCT). Eleven months after liver transplantation, abdominal lymph node enlargement and colon ulcers were observed, and colon biopsy showed posttransplant lymphoproliferative disorder (PTLD). Immunosuppression reduction was attempted, but i...
Background: Lymphoproliferative disease (PTLD) is a life-threatening complication of organ transplantation. In matched, allogeneic, non-T-cell-depleted stem-cell transplantations (SCT) the disease develops early but has been thought to be rare. Objectives: We determined by strict histopathological criteria the incidence of fatal Epstein-Barr-virus (EBV)--related PTLD in a large number of SCT, a...
We examined the utility of Epstein-Barr virus (EBV) load as a test for the presence of posttransplant lymphoproliferative disease (PTLD). A semiquantitative (SQ) EBV polymerase chain reaction (PCR) on peripheral blood mononuclear cells (PBMC) was used to determine virus load. We compared the values from pediatric patients, both with and without PTLD, with those from healthy pediatric and adult ...
There are experimental data which suggest that the primary immune effector cell responsible for maintaining immune surveillance against the outgrowth of EBV-transformed B cells in humans is the CTL, but in vivo proof of this is lacking. In this study we perform a series of cellular and molecular assays to characterize an autologous, endogenous immune response against a transplantation-associate...
BACKGROUND Posttransplantation lymphoproliferative disorders (PTLDs) are lymphoid proliferations that can develop in recipients of solid organ or allogeneic bone marrow transplants. They are clinically and pathologically heterogeneous and range from polyclonal hyperplastic lesions to malignant lymphomas. Although extranodal involvement in PTLD is common, cutaneous presentation is rare, with onl...
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