It is the leading cause of cancer death in the world, with more than a million new cases each year around the globe: is lung cancer, which has reached, in 2012, 38,500 share diagnosed only in Italy. In the Bel Paese, lung cancer on the podium of the most common forms of cancer, winning a dismal third place. A “big killers” that can prevent, staying away from risk factors, and that you can counter, thanks to early detection, which increases the chance of survival, and the right therapies. Here is some useful information, symptoms, stages, causes and diagnosis.

The lungs, when there is a tumor

Two symmetrical organs, a spongy texture and placed in the chest, with the function to transfer oxygen to the bloodstream and purify it breathed the carbon dioxide produced by the body. Here’s what are the lungs, whose functionality is undermined by the presence of a tumor. There is no single form of cancer. In particular, one can distinguish two main types: small cell lung carcinoma (SCLC) and non-small cell lung carcinoma (NSCLC), which constitutes the most common form with 85% of cases.

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The causes and risk factors

In the case of lung cancer, the finger is pointing straight toward certain risk factors dangerous. First, the smoke, a bad habit that increases the risk of developing lung cancer by 10 to 40 times and is responsible for 85% -90% of cancer affecting the lung tissues. Do not underestimate the environmental factors, such as tobacco smoke, occupational exposure to carcinogens and environmental pollution. Increase the risk of lung cancer even the age and the presence of chronic inflammatory processes affecting the respiratory system.

The stages and symptoms

The lung cancers are classified into four stages, defined according to the TNM system, which takes into consideration the size of the tumor, whether lymph node involvement and the presence of metastasis. The symptoms, especially the initial ones, are not always clear and easily identifiable. Include: dry cough or phlegm, blood loss during coughing, difficulty breathing, chest pain and weight loss.

The diagnosis and treatment

To diagnose the presence of lung cancer, the Allies are more efficient instrumental examinations such as X-ray and CAT scan, followed by histological examination of the affected tissue. Cancer diagnosed, treatment options, to choose from depending on the type of lung cancer, involving surgery, chemotherapy and radiotherapy.