1. Surgery (Operation)
Goal: Removal of the tumor and potentially some surrounding tissue.
Use: Primarily for solid tumors. It may also be used for diagnostic purposes (biopsy) or to shrink tumors. In certain cases, chemotherapy or immunotherapy may be preferred before surgery, even for tumors that are operable. This approach helps to reduce tumor size, allowing for less extensive surgical procedures, minimizing the removal of healthy tissue, reducing side effects, and preventing distant spread.
Local therapy methods, such as surgery, are increasingly being employed for metastatic diseases (metastasectomies), which can significantly influence the success of the overall treatment.