Tumor resection is a surgical procedure aimed at removing a tumor from the body. This operation is often performed when the tumor is localized and can be safely accessed. The goal is to eliminate cancerous cells and prevent the spread of the disease. Surgeons may perform tumor resection on various organs, including the breast, lung, or brain. The extent of the surgery depends on the tumor's size and location. After the procedure, patients may require additional treatments, such as radiation therapy or chemotherapy, to ensure all cancer cells are eradicated.