Radiation Therapy Advantages And Disadvantages

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organs, through which radiation must pass to treat the tumor at that site), radiation beams should be shaped it is an aimed from multiple exposure angles to intersect at the tumor, it will providing a much larger dose to that area tissue than in the surrounding, healthy tissue. As with chemotherapy, cancer cells response toward radiation therapy is vary.[53] Radiation therapy is used in about half of cancer cases. The radiation is introduced to them can be either from internal sources (brachytherapy) or external sources. For treating a skin cancer mostly low energy x-rays is use,while higher energy x-rays are used for cancers inside the body.[54] Radiation is not frequently use for all cancer in addition to surgery and or chemotherapy. For…show more content…
It is typically use when staging of tumors and diagnosis is define properly, as biopsies are usually required. In localized cancer, what we are doing by surgery is remove the entire mass along with, in certain cases, the lymph nodes in the area. For some types of cancer by surgery this is sufficient to eliminate the cancer. Stages of cancer TNM system The TNM system is one of the most widely use system for cancer staging. The TNM system has been accepted by the Union for International Cancer Control (UICC) and the American Joint Committee on Cancer (AJCC). Most of the medical facility and organisation use the TNM system as their main method for cancer reporting. The TNM system is based on the size of the tumor and/or at what level it is extent (reach) of the primary tumor (T), how much amount of that spread to nearby lymph nodes (N), and their presence as metastasis (M) or secondary tumors which is formed due to the spread of cancer cells to other parts of the body. A numerical digit is added to each letter to indicate the size of the tumor and/or at what level it is extent of the primary tumor and their degree of…show more content…
Head and neck cancers are mostly squamous cell carcinomas. In this type of cancer it begins in a flat,squamous cells which make up a thin layer of a tissue on the surface of the structures present in the head and neck .In the epithelium, there are some area of a head and neck which have a layer of some moist tissue which is called mucosa.If cancer is limited to the layer of squamous cells ,it is called carcinoma in situ. In some cases where the cancer is grown beyond that layer and move in depth of the tissue ,then it is called invasive squamous cell carcinoma. In case head and neck cancer is begins in the salivary glands, then tumors will classified as an adenoid cystic carcinoma, adenocarcinoma and mucoepidermoid carcinoma. Types of head and neck cancer There are five main type of cancer ,each of them named on the bases where they are are present in the body and in which part of the body it start to
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