Multidisciplinary team approach and customized care in cancer diagnosis and treatment. Cancer is defined as a group of diseases that show uncontrolled growth and spread of abnormal cells that threaten a person from a biological, psychological, social and economic aspect. Adopted within the framework of chronic diseases, cancer is one of the leading health problems of our time due to its frequency and high mortality rate. The diagnosis of cancer, even the possibility, directly undermines the homeostatic balance of individuals. Despite the latest advances in cancer treatment, the negative connotations associated with the disease and the implementation of intensive care cause many problems in patients. Therefore, controlling the symptoms and ensuring the life satisfaction of those suffering from the disease is becoming increasingly important. Diseases such as cancer are not a condition caused by abnormal structural and functional changes in tissues and cells, but directly affect an individual's quality of life because they are a crisis of an individual's identity and existence, affecting the physical, mental, social and spiritual dimensions. . The quality of life of cancer patients begins to affect from the beginning of the diagnosis and continues to affect depending on many factors. during and after the treatment process. In cancer patients, problems depending on the disease process and treatment, they try to overcome with a holistic (integrated) approach at the University Oncology Hospital Medipol. The department provides diagnostic and treatment services and psychosocial support services to patients. In addition, the tumor council is held twice a week in the hospital, and the treatment process is effectively planned, which requires a multidisciplinary assessment of the status of oncology patients. Chemotherapy treatment of patients is carried out in the Chemotherapy Department of the hospital. Cancer should be treated taking into account the psychological stresses that the patient experiences due to the effects and concerns for the treatment process, the psychosocial needs of the patients. Great expectations… A new generation of intelligent technology and targeted cancer treatment Cancer treatment is successfully completed by specialized academic staff with the latest technological devices and applications in the Department of Radiation Oncology, Medipol University. Radiotherapy is a method of treatment that aims to kill cancer cells using high-energy radiation. Radiation therapy also affects normal cells; so treatment should be done carefully by experienced hands to minimize side effects. Radiotherapy administered during cancer treatment may be administered externally with machine guidance or may be administered with radioactive agents inserted into or near tumor cells. Patients may be given radiotherapy before, during or after surgery, depending on the type of cancer. Radiation oncologists decide on the type of radiation application. This can depend on various factors: -Type of cancer -Degree of cancer -Localization of cancer within the body -How close is the cancer to the tissues sensitive to radiation. -How far does the radiation need to go further to reach the target region -General health of the patient and medical history -What types of other cancer treatments will be applied -Other factors such as age and other medical conditions Radiotherapy can be used as monotherapy or concomitantly with chemotherapy.