<unk>  (PMBCL) is a subtype of diffuse<unk> <unk> -cell lymphoma (DLBCL). It is also considered a distinct type of non-Hodgkin lymphoma (NHL) in the World Health Organization (WHO) classification system. It occurs in the thymus gland. The small gland in the center of the chest<unk> ehind the sternum where lymphocytes mature, multiply and<unk> ecome T<unk> s. or lymph nodes in the center of the chest. On microscopic histopathological analysis,<unk> -sized<unk> s and alveolar fibrosis are characteristic findings of<unk> . The incidence of<unk>  increases with age; the median age at diagnosis is 35 years. The symptoms of the<unk>  include  fever, weight loss, night sweats, skin rash, facial swelling, cough, shortness of<unk> reath, and painless swelling in the neck, axilla, groin, thorax, or abdomen. Lymph node or<unk>  mass<unk> iopsy is diagnostic of<unk> . The predominant therapy for<unk>  is chemotherapy. Adjunctive radiotherapy, stem<unk>  transplant, and<unk> iological therapy may<unk> e required. The optimal therapy for<unk>  depends on the clinical presentation.
Primary mediastinal large B-cell lymphoma
Nodal marginal zone lymphoma
Thymic carcinoma
Primary effusion lymphoma
Lymphoplasmacytic lymphoma
Follicular lymphoma
Splenic marginal zone lymphoma
AIDS-related lymphoma