Epstein-Barr Virus-Associated Smooth Muscle Tumor After Kidney Transplantation: A French Multicenter Retrospective Study.
Clin Transplant
; 38(8): e15424, 2024 Aug.
Article
em En
| MEDLINE
| ID: mdl-39136236
ABSTRACT
BACKGROUND:
Epstein-Barr virus (EBV) is a herpesvirus linked to nine different human tumors and lymphoproliferative disorders. Immunosuppression promotes EBV-driven malignancies. The most frequent EBV-induced malignancies are lymphomas and nasopharyngeal carcinoma. By promoting smooth muscle proliferation, EBV can induce EBV-associated smooth muscle tumors (EBV-SMT). EBV-SMT is a rare oncological entity for which no current guideline for diagnosis or management exists. Data on posttransplant EBV-SMT (PT-SMT) are scarce in kidney transplant recipients.METHODS:
We conducted a national multicentric retrospective study and collected cases among transplantation centers in France. Kidney transplant recipients experiencing histologically proven PT-SMT were included. We collected data on demographic characteristics of patient, history of kidney transplantation, history of PT-SMT, evolution of graft function, and patient survival.RESULTS:
Eight patients were included. The median age at PT-SMT diagnosis was 31 years (range 6.5-40). PT-SMT occurred after a median delay of 37.8 months after transplantation (range 6-175). PT-SMT management consisted in immunosuppressive regimen minimization in all patients. Introduction of mTOR inhibitors was performed in two patients. Four patients (50%) needed chemotherapy. Surgical resection was performed in four patients. At last follow-up after PT-SMT diagnosis (median 33 months (range 17-132)), five patients were considered in complete remission, and two patients had died. Two patients experienced graft rejection; two resumed dialysis (25%). All patients with available data presented with impaired graft function at last follow-up.CONCLUSION:
PT-SMT is a subacute and progressive disease during kidney transplantation. Even if the risk of developing PT-SMT is low in kidney transplant recipients (0.07% in our cohort), PT-SMT is associated with significant graft loss, possibly due to reduced immunosuppression. Developing guidelines could help transplantation teams better manage these patients.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Complicações Pós-Operatórias
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Transplante de Rim
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Tumor de Músculo Liso
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Herpesvirus Humano 4
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Infecções por Vírus Epstein-Barr
Limite:
Adolescent
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Adult
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Child
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Female
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Humans
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Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
Clin Transplant
Assunto da revista:
TRANSPLANTE
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
França