Knowledge about cancer genetics is rapidly expanding, and has implications for all aspects of cancer research and treatment, including molecular causation, diagnosis, prevention, screening, and treatment.

Additionally, while cancer genetics has traditionally focused on mutational events that have their primary effect within the cancer cell, recently the focus has widened, with evidence of the importance of epigenetic events and of cellular interactions in cancer development. The role of common genetic variation in determining the range of individual susceptibility within the...