Cancer in the elderly.

Ageing is a fundamental biological process in all living beings. Nowadays as a result of developments in preventive and therapeutic medicine, and improvements in the quality of life, ageing of the population is one of the most important demographic issues. In the elderly, cancer is one of the predominant causes of mortality and morbidity, and its incidence increases with ageing. Sixty percent of all cases with cancer, and 70% of cancer-related deaths occur in patients aged 65 years and over. For optimal care, and treatment of elderly cancer patients a multidisciplinary approach consisting of physical, psychological, and tumor-related assessments should be pursued. Because of increased incidence of cancer caused by demographic changes in Turkey and in the world, an increase in the burden of cancer in the population is expected. In the years to come, this expectation will also lead to an increase in cancer-related health expenses.