Primary Mediastinal B-Cell Lymphoma, also known as mediastinal diffuse large-cell lymphoma with sclerosis, is related to burkitt lymphoma and mediastinal gray zone lymphoma. An important gene associated with Primary Mediastinal B-Cell Lymphoma is MIR155 (MicroRNA 155), and among its related pathways/superpathways are Innate Immune System and Class I MHC mediated antigen processing and presentation. The drugs Cyclophosphamide and Lenograstim have been mentioned in the context of this disorder. Affiliated tissues include b cells and t cells, and related phenotypes are cellular and homeostasis/metabolism