This guide is an educational resource compiled by the Lymphoma Research Foundation (LRF) that provides general information on adult non-Hodgkin lymphoma. Publication of this information is not intended to take the place of medical care or the advice of a patient's doctor. Patients are strongly encouraged to talk to their doctors for complete information on how their disease should be diagnosed, treated, and followed. Before starting treatment, patients should discuss the potential benefits and side effects of cancer therapy.