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After an organ or stem cell transplant, the drugs that stop rejection also stop the immune system from policing Epstein-Barr virus, and infected B cells can grow into a lymphoma. The first move is to ease the immunosuppression; then the antibody rituximab, chemotherapy if needed, and, newest of all, off-the-shelf virus-specific T cells that restore the missing immune control.
PTLD spans a spectrum from EBV-driven polyclonal hyperplasia to monomorphic lymphoma (usually diffuse large B-cell, sometimes Burkitt, plasmablastic, T-cell or Hodgkin-like), classified under WHO 2022 as lymphoid proliferations and lymphomas associated with immune deficiency and dysregulation. EBV is detectable in most early and paediatric cases and about half of late adult cases; EBV-negative PTLD arises later and behaves like de novo lymphoma. Risk is driven by the degree of T-cell suppression (T-cell-depleting induction, tacrolimus-based regimens), EBV-seronegative recipients of seropositive organs (the paediatric scenario), and organ type. In allogeneic stem cell transplant the risk factors are T-cell depletion, mismatched or cord blood donors and anti-thymocyte globulin.
Management is stepwise. Reduction of immunosuppression is the first intervention and alone induces remission in a minority, at the cost of rejection risk. Rituximab monotherapy follows for CD20-positive disease; the PTLD-1 trial (Trappe and colleagues, Lancet Oncology 2012) established sequential therapy with four doses of rituximab followed by CHOP, and its risk-stratified successor (JCO 2017) showed that patients in complete remission after rituximab can continue rituximab alone, reserving CHOP for the rest. Surgery or radiotherapy handles localised disease, and EBV DNA monitoring with pre-emptive rituximab is standard after high-risk stem cell transplants. The newest treatment restores what was lost: EBV-specific cytotoxic T cells. Tabelecleucel (Ebvallo), an allogeneic, HLA-matched, off-the-shelf EBV-specific T-cell product, received European approval in December 2022 for relapsed or refractory EBV-positive PTLD after at least one prior therapy, on the basis of the ALLELE study; in the United States it received a complete response letter in January 2025 tied to manufacturing inspection findings and it does not yet appear on the FDA list of approved cellular and gene therapy products, so US patients access EBV-specific T cells through trials and academic programmes. CD19 CAR-T and bispecific antibodies have been used in small numbers of refractory patients.
Open problems are the outcome of rituximab-refractory disease, balancing rejection against lymphoma control, EBV vaccination for seronegative transplant candidates, and paediatric access to virus-specific T cells.
Occurs after roughly one to twenty percent of solid organ transplants depending on organ, EBV serostatus and age (highest in EBV-seronegative children receiving intestinal or lung grafts), and after a small percentage of allogeneic stem cell transplants (ISHLT; CIBMTR).
Leukaemias, myeloma and MDS live in the marrow and blood; lymphomas grow in lymph nodes and spleen. The node stations are the disease map, not a route of spread, and staging counts them.
In lymphoma the node stations are the disease itself; staging (Ann Arbor / Lugano) counts how many regions and sides of the diaphragm are involved.
Same organ: High-grade B-cell lymphoma with MYC and BCL2 rearrangements (double-hit lymphoma), Mediastinal grey zone lymphoma, Primary effusion lymphoma, Plasmablastic lymphoma, T-cell/histiocyte-rich large B-cell lymphoma, EBV-positive diffuse large B-cell lymphoma, Primary large B-cell lymphoma of the testis, Gastric MALT lymphoma, Ocular adnexal MALT lymphoma, Extranodal NK/T-cell lymphoma, Adult T-cell leukaemia/lymphoma, ALK-positive anaplastic large cell lymphoma, ALK-negative anaplastic large cell lymphoma, Breast implant-associated anaplastic large cell lymphoma, Primary cutaneous anaplastic large cell lymphoma, Lymphomatoid papulosis, Mycosis fungoides, Enteropathy-associated T-cell lymphoma, Monomorphic epitheliotropic intestinal T-cell lymphoma, Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma), Splenic marginal zone lymphoma, Nodal marginal zone lymphoma, Primary cutaneous marginal zone lymphoma, Primary cutaneous follicle centre lymphoma, Sezary syndrome, Nodal T-follicular helper cell lymphoma, angioimmunoblastic type (angioimmunoblastic T-cell lymphoma), Hepatosplenic T-cell lymphoma, Intravascular large B-cell lymphoma, Lymphomatoid granulomatosis, T-cell prolymphocytic leukaemia, Splenic B-cell lymphoma/leukaemia with prominent nucleoli (formerly B-cell prolymphocytic leukaemia and hairy cell leukaemia variant), T-cell large granular lymphocytic leukaemia, Mixed-phenotype acute leukaemia, Myeloid leukaemia of Down syndrome, Burkitt leukaemia, Marginal zone lymphoma, Cutaneous T-cell lymphoma (mycosis fungoides and Sezary syndrome), Primary mediastinal (thymic) large B-cell lymphoma, Leukaemia (all types), Acute myeloid leukaemia, Acute lymphoblastic leukaemia, Chronic lymphocytic leukaemia, Chronic myeloid leukaemia (CML), Diffuse large B-cell lymphoma, Follicular lymphoma, Hodgkin lymphoma, Mantle cell lymphoma, Multiple myeloma, Non-Hodgkin lymphoma (all types), Myelodysplastic syndromes / neoplasms (MDS), Myeloproliferative neoplasms (PV, ET, myelofibrosis), Polycythaemia vera (PV), Essential thrombocythaemia (ET), Waldenström macroglobulinaemia, Hairy cell leukaemia, Peripheral T-cell lymphomas (including cutaneous T-cell lymphoma), Blastic plasmacytoid dendritic cell neoplasm (BPDCN), Burkitt lymphoma, HIV-associated (AIDS-related) lymphomas, Chronic myelomonocytic leukaemia and MDS/MPN overlap neoplasms, Systemic mastocytosis, Erdheim-Chester disease, Rosai-Dorfman disease and other histiocytic neoplasms, Langerhans cell histiocytosis (LCH), FLT3-mutated acute myeloid leukaemia, IDH1- and IDH2-mutated acute myeloid leukaemia, NPM1-mutated and KMT2A-rearranged acute myeloid leukaemia, Secondary and therapy-related acute myeloid leukaemia, Acute promyelocytic leukaemia, Acute myeloid leukaemia in older or unfit patients, Smouldering multiple myeloma, Newly diagnosed multiple myeloma, transplant-eligible, Newly diagnosed multiple myeloma, transplant-ineligible, Relapsed or refractory multiple myeloma, Plasma cell leukaemia, Lower-risk myelodysplastic syndromes, Higher-risk myelodysplastic syndromes, Chronic lymphocytic leukaemia, first treatment, Relapsed or refractory chronic lymphocytic leukaemia, Richter transformation of chronic lymphocytic leukaemia, Chronic myeloid leukaemia, chronic phase, Chronic myeloid leukaemia, accelerated and blast phase, Primary myelofibrosis, Standard-risk B-cell acute lymphoblastic leukaemia in children, High-risk acute lymphoblastic leukaemia in children (high-risk B-ALL and T-ALL), Philadelphia chromosome-positive acute lymphoblastic leukaemia in children (Ph-positive ALL), Philadelphia chromosome-like acute lymphoblastic leukaemia (Ph-like or BCR::ABL1-like ALL), Infant acute lymphoblastic leukaemia (KMT2A-rearranged, under one year), Relapsed and refractory acute lymphoblastic leukaemia in children, Acute myeloid leukaemia in children, Erdheim-Chester disease, Rosai-Dorfman-Destombes disease, Single-system Langerhans cell histiocytosis (bone, skin or one other organ), Multisystem Langerhans cell histiocytosis (with or without risk-organ involvement), Indolent and smouldering systemic mastocytosis, Advanced systemic mastocytosis (aggressive SM, SM with an associated haematological neoplasm, mast cell leukaemia), Early-stage classical Hodgkin lymphoma (stage I to II), Advanced-stage classical Hodgkin lymphoma (stage III to IV), Nodular lymphocyte-predominant Hodgkin lymphoma (nodular lymphocyte-predominant B-cell lymphoma), Relapsed and refractory classical Hodgkin lymphoma
Reduce immunosuppression as far as graft safety allows, with close monitoring for rejection; surgery or radiotherapy for localised disease.
Rituximab weekly for four doses; patients in complete remission continue rituximab consolidation alone, others proceed to R-CHOP (PTLD-1 risk-stratified sequential treatment).
EBV-specific T cells: tabelecleucel (EMA approval 2022; under FDA review) or institutional virus-specific T-cell programmes; clinical trials.
Weekly plasma EBV DNA monitoring with pre-emptive rituximab when load rises; reduction of immunosuppression where possible.
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One cancer page on OnCo cites this paper by its DOI; this record gives the citation a page of its own so a reader can follow it without leaving OnCo. Read the abstract above alongside the citing page listed under Related; the record was created automatically from the Europe PMC entry and its figures have not been checked by hand.
Risk-stratified sequential treatment is the standard first-line approach to post-transplant lymphoproliferative disorder, sparing complete responders to rituximab from chemotherapy.
One cancer page on OnCo cites this paper by its DOI; this record gives the citation a page of its own so a reader can follow it without leaving OnCo. Read the abstract above alongside the citing page listed under Related; the record was created automatically from the Europe PMC entry and its figures have not been checked by hand.
The start of viral oncology. Everything in cancer prevention that works by preventing or treating an infection, from hepatitis B vaccination to Helicobacter eradication for gastric MALT lymphoma, descends from the idea this paper established.
Query for this cancer: (TITLE:"Post-transplant lymphoproliferative disorder" OR ABSTRACT:"Post-transplant lymphoproliferative disorder" OR TITLE:"PTLD" OR ABSTRACT:"PTLD" OR TITLE:"EBV-positive PTLD" OR ABSTRACT:"EBV-positive PTLD" OR TITLE:"Immunodeficiency-associated lymphoproliferative disorder" OR ABSTRACT:"Immunodeficiency-associated lymphoproliferative disorder") AND (treatment OR therapy OR trial OR survival OR diagnosis). Results are unfiltered search hits about Post-transplant lymphoproliferative disorder (PTLD), not a curated reading list.
Doak and colleagues; Penn's registry (1969) establishes the association with immunosuppression.
Hanto and colleagues show EBV in lymphoproliferations of transplant recipients and regression with reduced immunosuppression.
Rooney, Heslop and colleagues (Lancet 1995) after stem cell transplant.
Case series and the French multicentre trial (Blood 2006) establish anti-CD20 therapy.
Trappe and colleagues, Lancet Oncology 2012.
Rituximab consolidation alone for complete responders (JCO 2017).
First allogeneic T-cell immunotherapy approved; December 2022, for relapsed or refractory EBV-positive PTLD.
The targets of this cancer's medicines and the ones linked to it directly.
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Bleeding that does not stop by itself, bleeding from more than one site, or new bruising in several places or one large area.
Cumulative dose: risk rises steeply above 400-550 mg/m² (see the anthracycline calculator).
Fatal if given intrathecally: label all syringes.
Reduce by 50% for bilirubin 20-50 µmol/L and 75% for 50-85 µmol/L.
Alkylating chemotherapy can damage a blood stem cell in a way that shows up years later as myelodysplastic syndrome or acute myeloid leukaemia. It is uncommon, it depends on the total dose, and the risk falls away after about ten years. Knowing the cumulative dose you were given is the single most useful thing on your treatment summary.
Cyclophosphamide is one of the few cancer drugs that has been shown to cause a specific solid cancer, in the bladder, and the risk depends steeply on the total dose given. Blood in the urine years after treatment with it is a reason to be investigated rather than reassured, and the cumulative dose on your treatment summary is what tells you where you sit.
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