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Causes of laryngeal cancer. Laryngeal cancer is caused by changes in the cells of the larynx, although it's not clear exactly why this happens. All cancers begin with a change in a cell's DNA. DNA provides our cells with a basic set of instructions, such as when to grow and reproduce.his causes the cells to reproduce in an uncontrollable manner, producing a growth of tissue called a tumour. It's not known why the DNA inside the cells of the larynx is affected in cases of laryngeal cancer.
Because swelling is sometimes a sign of cancer, it is also important to see your doctor to be sure the cancer has not come back. Causes of lymphedema. Lymphedema is usually a predictable long-term side effect of some cancer treatments. The most common causes of lymphedema in cancer survivors include: Surgery in which lymph nodes were removed. For example, surgery for breast cancer often involves removing 1 or more lymph nodes under the arm to check for cancer. This can cause lymphedema in the arm. Radiation therapy or other causes of inflammation or scarring in the lymph nodes and lymph vessels. Blockage of the lymph nodes and/or lymph vessels by the cancer. The risk of lymphedema increases with the number of lymph nodes and lymph vessels removed or damaged during cancer treatment or biopsies.