The patient was a man in his sixties who received kidney transplantation from a deceased donor. Five months after the transplantation, his serum creatinine (sCre) increased up to 3.2 mg/dL from around 2.0 mg/dL. As we diagnosed as acute T cell-mediated rejection (TCMR) by renal biopsy, we performed steroid pulse for 3 days. Although sCre temporarily improved to around 2.5 mg/dL, sCre increased again immediately. Thus, we were forced to send the patient to another hospital for further examination and treatment. There, the steroid pulse was performed again, and sCre improved to around 2.5 mg/dL again. Due to the sudden increasing of sCre up to 5.2 mg/dL, the patient was hospitalized for treatment. After that, the gradual decline in platelet count resulted in bleeding from the sigmoid colon which required endoscopic clipping. As we considered the possibility of thrombotic microangiopathy (TMA), we decided to remove the transplanted kidney. Nevertheless, bleeding from the duodenum subsequently occurred. Although we performed the endoscopic clipping, and transcatheter arterial embolization (TAE) of the inferior pancreaticoduodenal artery and transfusion, the patient died after 38 days. After the autopsy, Epstein-Barr virus-associated post-transplant lymphoproliferative disorder (EBV-PTLD) in the liver and spleen, bone marrow, and transplanted kidney was identified, although the bleeding from the digestive organs was the main cause of death. Consequently, EBV-PTLD surely brought death, and we learned the necessity of monitoring EBV-DNA by real-time PCR under the consideration of the possibility of the development of EBV-PTLD in the case of excessive immunosuppression like steroid pulse, even for EBV seropositive cases.
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