| Περίληψη: | Lung cancer affects a life-sustaining system of the body, the respiratory system. The respiratory
system is accountable for one of the vital functions of life, breathing. Breathing enables one to
take in oxygen and expel carbon dioxide. Every cell in the body depends on oxygen to function.
Cancer is a state caused by the uncontrolled growth of cells. There are different kinds of cancer.
These kinds are named according to the type of cell that is growing in an unchecked way.
Cancer can arise from nearly any part of the body. More specifically, lung cancer explicates
when normal lung cells maintain genetic damage that ultimately leads to uncontrolled cell
multiplication. Lung cancer cells have the ability to invade neighboring tissues and spread or
metastasize to distant parts of the body. If lung cancer is left unhealed, it eventually causes
death. The great reserve capacity of normal lungs permits cancerous lung tumors to grow for
years without jeopardizing lung function. The lungs do not have many nerves to impart pain
messages so a cancerous lung tumor can grow for many years without causing any symptoms.
This silent growth of lung cancer has led scientists to develop various methods such as lung
cancer screening in the past few years. The process that gives the opportunity to define whether
the cancer has spread and to what extent is called staging. As for the treatment of lung cancer,
the deadly disease is currently cured by three forms of treatment. These are: surgery,
chemotherapy and radiotherapy. They are used on the patient in combination or separately
depending on the type of lung cancer from which he or she suffers and the stage of illness. The
medical machine that enables doctors to perform the radiation therapy procedure is the medical
linear accelerator (LINAC). The practice of radiotherapy requires not only excellent clinical
skills but also appropriate technical expertise.
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