Abstract
The incidence of post-transplant lymphoproliferative disorder (PTLD) in adult kidney transplant (KTx) recipients is less common in Taiwan. In our institute, we observed that brain lymphoma was the most notorious type. The study describes the clinical, histologic, and radiological features of primary central nervous lymphoma (PCNSL) and the outcomes and associations with Epstein-Barr virus (EBV) infection in our center. Among 1470 KTx recipients, 5 patients had tissue-proven brain lymphoma (0.34%). The brain pathology disclosed diffuse large B-cell lymphoma in all patients. EBV was detected through in situ hybridization for Epstein-Barr encoding region (EBER) to disclose the EBV inclusion in the nuclei of lymphoma cells. The first treatment step was the reduction of immunosuppressants; 4 patients received whole-brain radiotherapy after complete resection of PCNSL, and 1 received concurrent chemoradiotherapy. Only one patient had poor performance status at the time of diagnosis and had a poor response to treatment with steroids. Four patients survived (mean 36.5 months, range 8.6 to 57.6 months), but one died after rapid neurologic deterioration. Epstein-Barr virus inclusion was found in PCNSL in our patients; however, the role of EBV in PCNSL remains to be clarified. Post-transplant lymphoproliferative disorder is a rare malignancy after KTx with a predilection of brain involvement in Taiwan. We report a successful care experience in a patient with primary CNS lymphoma with better survival.
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