The choice for treatment depends on factors such as location, degree of severity, grade of tumour and the general state of the patient. In essence, the goal of cancer treatment is to remove or destroy the malignant cells without excessive damage to the body.
Surgical treatment involves surgical excision of a tumour or an entire organ but the propensity of cancer cells to microscopically metastases makes it effective only in localized small cancers such as breast and prostate tumours. Radiation therapy can come in the form of radiotherapy, X-ray therapy and irradiation and uses ionizing radiation to kill cancer cells. This kind of therapy is used for the treatment of cancers of the brain, cervix, larynx, breast, lung, pancreas, skin, prostate, stomach, uterus or soft tissue sarcomas. It is also used in the treatment of leukemia and lymphoma. Chemotherapy involves the treatment of cancer with cytotoxic drugs that can have many effects specifically geared towards the elimination of cancer cells. One of the effects of the drugs is to interfere with cell division by hindering the duplication of DNA and the separation of chromosomes. The anticancer drugs travel through the bloodstream making it useful for cancers that have spread. ...Show more