Medical Definition of CNS prophylaxis
CNS prophylaxis: Chemotherapy or radiation therapy to the central nervous system (CNS) as a preventive treatment. CNS prophylaxis is given to kill cancer cells that may be in the brain and spinal cord, even though no cancer has been detected there.
Last Editorial Review: 6/9/2016
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?