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Cancer of the lung - Definition


Definition


Lung cancer is the deadliest cancer in most countries. Lung cancer is mainly due to tobacco use and is very aggressive because metastasis occurs quickly. Apart from a history of smoking, lung cancer is also suspected in the presence of a persistent cough, difficulty breathing, chest pain, sometimes coughing up blood, and often a decline in general health. A chest X-ray is the first examination, sometimes a CT scan, and in the case of a suspicious lesion, an endoscopy or biopsy of the lesion is necessary to identify the constituent cells. Conventional surgery, chemotherapy, and radiotherapy are used depending on the progression of the cancer. Note that the lung is an organ often affected by the metastasis of other cancers.
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