<unk>  <unk>  is the name given to a B cell proliferation due to therapeutic immunosuppression after organ<unk> ation. These patients may develop infectious mononucleosis-like lesions or polyclonal polymorphic B-cell hyperplasia. Some of these B cells may undergo mutations which will render them malignant, giving rise to a lymphoma. In some patients, the malignant cell clone can become the dominant proliferating cell type, leading to frank lymphoma, a group of B cell lymphomas occurring in immunosuppressed patients following organ<unk> .
Post-transplant lymphoproliferative disorder
AIDS-related lymphoma
Transfusion-associated graft-versus-host disease
Thymoma-associated multiorgan autoimmunity
Splenic marginal zone lymphoma
Graft-versus-host disease
Diffuse infiltrative lymphocytosis syndrome
Immune reconstitution inflammatory syndrome