Diffuse Large B-cell Lymphoma (DLBCL) is indeed the most common type of aggressive Non-Hodgkin Lymphoma, accounting for approximately 30-40% of adult NHLs. It is an aggressive lymphoma that requires prompt treatment, unlike indolent lymphomas. The t(14;18) translocation is characteristic of Follicular Lymphoma, although a subset of DLBCLs can also harbor this translocation. DLBCL is a B-cell lymphoma, meaning it is typically CD20 positive, not CD3 positive (which is a T-cell marker).
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