MabThera (Rituximab) in Combination With CHOP (or CHOP-like) Chemotherapy in Patients With Aggressive B-Cell Lymphoma

Evaluation of efficacy, safety profile and tolerability of rituximab (MabThera) in combination with chemotherapy in the treatment of Diffuse Large B-Cell Lymphoma (DLBCL). Participants, who were not treated previously for DLBCL, will receive MabThera in combination with Cyclophosphamide, Hydroxydaunorubicin, Oncovin, Prednisone (CHOP) or CHOP-like chemotherapy according to registered indication. Patients will be followed up for safety and efficacy evaluation in accordance with routine practice. The study will be non-interventional and by its design purely observational. All treatments prescribed during the observation period will be at the treating physician's discretion and will be prescribed according to package labeling, within approved indication and local approval status of respective drugs.