- In the opinion of the transplant physician, unlikely to benefit from reduced intensity transplantation due to the presence of one or more high-risk features (i.e., bulky tumor masses, B symptoms, and/or inadequate response to salvage chemotherapy) NOTE: A new classification scheme for adult non-Hodgkin lymphoma has been adopted by PDQ. The terminology of "indolent" or "aggressive" lymphoma will replace the former terminology of "low", "intermediate", or "high" grade lymphoma. However, this protocol uses the former terminology.