<unk>  <unk>  is a type of non-Hodgkin's lymphoma (NHL), comprising about 6% of NHL cases. There are only about 15,000 patients presently in the United States with<unk> . It is named for the<unk>  zone of the lymph nodes.<unk>  is a subtype of B-cell lymphoma, due to CD5 positive antigen-naive pregerminal center B-cell within the<unk>  zone that surrounds normal germinal center follicles.<unk>  cells generally over-express cyclin D1 due to a t(11:14) chromosomal translocation in the DNA. Specifically, the translocation is at t(11;14)(q13;q32). Lymph nodes of the head and neck, from Gray's Anatomy (click image to enlarge)
Mantle cell lymphoma
Mature T-cell lymphoma
Mixed-cell lymphoma
Diffuse large B-cell lymphoma
Anaplastic large-cell lymphoma
Aggressive lymphoma
Marginal zone B-cell lymphoma
Nodal marginal zone B cell lymphoma