Oncology is the branch of medicine that deals with cancer and the treatment of benign and malignant tumors. Oncologists are concerned with screening for different types of cancer, diagnosis, radiotherapy, surgery, chemotherapy, and other treatments. They’re also the doctors you’ll see for palliative care in terminal cases.
Regular screenings can detect tumors early so that they may be dealt with while they are small and relatively easy to handle. Diagnosis can be performed with a biopsy, endoscopy, X-ray, ultrasound, CT scan, as well as some other means. Cancer treatment in the United States can become incredibly expensive very quickly, and some of the best oncologists in the world are found outside the US, in countries we serve, at medical facilities we partner with.