Pulmonary Tuberculosis Coexisting with Isolated Pulmonary Posttransplant Lymphoproliferative Disorder in a Renal Transplant Recipient

Abstract Posttransplant lymphoproliferative disorder (PTLD) is a serious complication that can occur after a renal transplant. PTLD is often linked to Epstein–Barr virus (EBV) infection and the use of immunosuppressive drugs to prevent organ rejection. EBV seronegative status, the use of antilymphocyte antibodies, and acute rejection episodes are known risk factors for PTLD in renal transplant recipients. PTLD can occur at any time after transplant, but it is more likely to develop within the 1 st year after transplantation. In renal transplant recipients, PTLD commonly involves the lymph nodes and gastrointestinal tract. Lung involvement is rare in this population. Co-existing infections with PTLD are the result of immunosuppression required for renal transplant.