Epstein-Barr Virus Polymerase Chain Reaction-negative Stage IV Post-transplant Lymphoproliferative Disorder in a Heart Transplant Patient Treated With Rituximab

Post-transplant lymphoproliferative disorder (PTLD) is often associated with Epstein-Barr virus (EBV). However, in this report, we describe a heart transplant recipient with pathologically proven EBV-positive PTLD with undetectable virus by polymerase chain reaction. The patient had remission after anti-CD20 antibody treatment early after transplantation.