Oncology (from the Greek “onkos”, meaning mass) is the medical speciality concerned with cancer and malignant tumors. A doctor in this speciality is called an oncologist or a cancer specialist. There are roughly 10,000 cancer specialists in Europe. They treat solid tumor cancers (i.e. precisely located tumors). Blood cancers (ex. leukaemia) are treated by haematologists.
The primary diseases and disorders concerned in the area of oncology are: