 This research study is for patients with newly diagnosed Diffuse Large B-cell Lymphoma DLBCL of the activated B-cell ABC type who have not yet been treated. DLBCL is a cancer of a type of blood cell called B-lymphocytes. B lymphocytes are part of the bodys immune system. There are different types of DLBCL. About a third of newly diagnosed DLBCL cancers are the ABC type. It has been observed that treatment does not work as well for patients with the ABC type compared to patients with other DLBCL types who receive standard treatment. However, at this time both ABC type and other DLBCL type patients receive the same standard treatments. 