Very late onset post-transplant diffuse large B cell lymphoma in a liver transplant recipient with hepatitis B A case report

Abstract

Rationale: Post transplantation lymphoproliferative disorder (PTLD) is a rare but severe complication. Epstein-Barr virus (EBV) is considered an important pathogen for PTLD and EBV deoxyribonucleic acid (DNA) load is widely monitored to detect PTLD early. Hepatitis B virus (HBV) infection is rarely reported to be related with PTLD. We report a case of EBV negative (EBV-), HBV positive (HBV+) diffuse large B cell lymphoma in a patient 12 years after liver transplantation. Patient concerns and diagnosis: A 52-year-old man complained of worsening appetite, abdominal distension, and pruritus. Abdominal computed tomography (CT) detected a huge retroperitoneal mass and pathology of the fine needle biopsy established the diagnosis of diffuse large B cell lymphoma. Virology showed active hepatitis B viral duplication and EBV DNA was negative. Intervention: Treatment modalities for this patient included: Reduction and subsequent cessation of immunosuppression; antiviral therapy for HBV with entecavir and adefovir; conventional chemotherapy consisting of cyclophosphamide, epirubicin, vindesine, and prednisone, followed by radiotherapy. He achieved complete remission (CR) and was kept on entecavir treatment afterwards. Outcomes: He has been in remission for 2 years. Lessons: HBV infection might have played some role in this very late onset EBV- PTLD patient. Therefore, HBV serology and HBV load should be monitored during the follow-up of HBV surface antigen positive (HBsAg+) transplant recipients and life-long antiviral therapy is required.