C86.0: Extranodal NK/T-cell lymphoma, nasal type

Extranodal NK/T-cell lymphoma, nasal type, is a rare and aggressive type of non-Hodgkin lymphoma, a cancer that originates in the lymphocytes -- a type of white blood cell. This specific type of lymphoma is associated with natural killer (NK) cells or T-cells, which are immune system cells, and is referred to as 'extranodal' because it occurs outside of the lymph nodes, typically in the nasal area. However, it can also affect other parts of the body. Common symptoms include nasal obstruction, nosebleeds, and a decrease in the sense of smell. The disease can also cause persistent ulcers or lesions on facial skin and inside the mouth, fever, weight loss, and night sweats. Progression of the disease is often rapid and can be difficult to manage. The exact cause of extranodal NK/T-cell lymphoma, nasal type, is unknown, but it has been linked to an infection with the Epstein-Barr virus.