[Clinical and Epidemiological Cancer Registries: Two Complementary Sources of Information on Cancer Incidence]

The law for the development of early cancer detection and quality assurance by clinical cancer registries regulates the duties, the funding, and the functions of the clinical cancer registries and thereby the cooperation between epidemiological and clinical registries. The necessary regulations and interfaces are described here. The progress in new concepts of cancer registration is triggered by fundamental changes in oncological care such as the increasing use of high-quality guidelines and the certification of oncological health-care units.