The Czech National Lymphoma Registry (NiHiL) was founded to monitor epidemiologic data and improve the diagnostic evaluation and quality of treatment of patients with non-Hodgkin´s lymphoma (NHL). The patients are registered into the registry in anonymized form. For each patient are available: registration form, diagnostic form, treatment form, follow- up form, and other malignancy form. Data quality in the NiHiL has been checked by audits. The data is analyzed according to NHL subtypes with endpoints: lymphoma distribution, epidemiological data, prognostic characteristic, treatment characteristics, response rate, relapse rate, mortality, PFS, OS, DFS, Lymphoma specific survival, longterm toxicity.