The Spectrum of Extranodal Non-Hodgkin’s Lymphoma

Although lymphoma is predominantly a disease affecting the traditional sites of lymph nodes, liver, spleen and bone marrow, it can affect many other sites, which is one of the fascinations of the disease. There are many case reports in the literature of lymphoma affecting unusual sites, and this is particularly true of T/NK cell lymphomas and those associated with HIV infection. Even within the recently revised WHO classification, the histological type of lymphoma may often be dictated by the tissue involved, eg Enteropathy associated T cell lymphoma, Cutaneous T cell lymphoma, Nasal NK cell lymphoma etc.