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lung cancer is a disease of uncontrolled growth in the tissues of the lung. This growth, it can lead to metastasis, invasion of adjacent tissue and infiltration of the lungs. The vast majority of primary lung carcinomas of the lung resulting from epithelial cells. Lung cancer is the commonest cause of cancer deaths in men and the second most common in women [1] [2] is responsible for 1. 3 million deaths annually worldwide.

What causes lung cancer?

smoking

The incidence of lung cancer is strongly correlated with cigarette smoking, with approximately 90% of lung cancers arise as a consequence of smoking. The risk of lung cancer increases with the number of cigarettes smoked over time, doctors refer to this risk in terms of pack-years of smoking history (the number of packs of cigarettes are smoked per day by multiplying the number of years smoked).

lung cancer most often begins in the cells, the lungs. Smoking causes lung cancer, the majority of the â?? both in smokers and in people exposed to secondhand smoke. But lung cancer also occurs in people who never smoked. In these cases, there is no clear cause of lung cancer. Doctors have factors that increase the risk identified.

cancer that originates from the lung cells is a primary lung cancer. Primary lung cancer can begin in the respiratory system to deliver the diversion of the trachea into the lungs (bronchi) or in the small air sacs of the lungs (alveoli) to. Cancer can also spread (metastasize) to the lung from other parts of the body () most often from the breast, colon, prostate, kidney, thyroid, stomach, cervix, rectum, testis, bone or skin.

Lung Cancer Symptoms

lung cancer symptoms are often not seen, had progressed to the disease, sometimes delayed diagnosis. The symptoms mimic the symptoms of lung cancer from other benign diseases.

The most common symptoms of lung cancer will learn:

Onset of wheezing

Recurring pneumonia or bronchitis

A persistent cough that does not go away

A sign is also an indication that something is not right in the body. But signs are things which we define by a doctor, nurse or other health care professional to be seen. Fever, rapid breathing and may hear abnormal breath sounds through a stethoscope signs of pneumonia.

lung cancer diagnosis

to the cause of the symptoms, your doctor will evaluate your medical history, smoking habits, exposure to environmental and occupational substances and family history of cancer. Your doctor will also perform a physical examination and can have a chest x-ray and other tests recommended. If lung cancer is suspected, sputum â?? microscopic examination of cells obtained from a deep-cough sample of mucus in the lungs â?? is a simple test that can be useful in detecting lung cancer. To confirm the presence of lung cancer, tissue must investigate your doctor.

How can I prevent lung cancer?

The best way to prevent lung cancer is to quit smoking or not start in the first place. You should try and not to people who smoke, and also avoid pipes, cigars and marijuana. If you live in an area with radon, you should make sure that getting rid of adequate ventilation in your basement to get it. Use a detector to ensure that the radon concentrations are low.

treatment of lung cancer

Many factors must be taken into account to determine the best treatment for a person diagnosed with lung cancer. The specific type of cell, the location of lung cancer in the stage of disease spread with possible metastases (spread to other parts of the body is), and the general health of the individual must be considered. Various treatment plans can radiotherapy, chemotherapy and / or surgery.