Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs Non-Hodgkin lymphomaUpdated: 2017-06-13OverviewNon-Hodgkin's lymphoma is cancer that starts in the lymphatic system. The condition occurs when the body produces too many abnormal lymphocytes, a type of white blood cell.SymptomsSymptoms include swollen lymph nodes, fever, belly pain, or chest pain.TreatmentsTreatments may include chemotherapy, radiation therapy, stem cell transplant, or medications. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use