<unk> , abbreviated<unk> , is a rare type of<unk>  that forms in the mediastinum (the space in<unk> etween the lungs) and predominantly affects young adults. It is a subtype of diffuse large<unk> -cell<unk> ; however, it generally has a significantly<unk> etter prognosis.
Primary mediastinal B-cell lymphoma
Thymic carcinoma
Thymoma with immunodeficiency
Tuberculous lymphadenitis
Nodal marginal zone B cell lymphoma
Primary effusion lymphoma
Gray zone lymphoma
Thymoma-associated multiorgan autoimmunity