A fever below 100.4 degrees Fahrenheit is considered a low-grade fever, according to WebMD. Aside from fever, other symptoms of non-Hodgkin lymphoma include enlarged lymph nodes, weight loss, chest pain, shortness of breath and a swollen abdomen, notes the American Cancer Society.
Non-Hodgkin lymphoma is a cancer that starts in the lymph cells, reports the American Cancer Society. The disease is usually diagnosed by a physical examination, imaging test or biopsy of the lymph nodes, according to Mayo Clinic. Mild cases of non-Hodgkin lymphoma may not require immediate treatment, although doctors usually continue to monitor patients. Patients with more serious cases receive chemotherapy or radiation therapy.