The facts about Lung Cancer

Lung cancer is a disorder and abnormality of human cells like other types of cancer.


Lung Cancer is considered as number 1 cause of death cancer all over the world for both men and women. The main cause of this cancer is a smoking cigarette either passive exposure or user. There are two types of cancer: small cell lung cancers (SCLC) and non-small cell lung cancer (NSCLC).

The stages of lung cancer can be determined by knowing where parts of the body cancer cells spread. Treatments can be surgery, chemotherapy, targeted therapy, immunotherapy, and radiation therapy. Detecting lung cancer is poor because doctors found cancer when it is developed. The survival rate is 5 years at around 54% for early detected patients and 4% for inoperable, advanced stage.

Lung cancer is a disorder and abnormality of human cells like other types of cancer. When the balance of cell growth is uncontrollable and abnormal, it causes proliferation of cells that leads to a tumor. A tumor is classified as benign or malignant. Cancer is considered as a malignant tumor that usually started on the affected area. It can also spread from other parts of the body by entering your bloodstream lymphatic system. Lung cancer can spread from particularly the adrenal glands, liver, brain, to bones.

The primary function of the lung is to manage the exchange gases between the air we breathe and the blood. The lungs remove the carbon dioxide from the bloodstream and allow oxygen to enter the bloodstream. 0%-95% of lung cancer is thought to arise from the epithelial cells, the cells lining the larger and smaller airways (bronchi and bronchioles). It can also rise through from the pleura (called mesotheliomas) or rarely from supporting tissues within the lungs, for example, the blood vessels.

Lung cancer is mostly a disease of the elderly; almost 70% of people diagnosed with lung cancer are over 65 years of age, while less than 3% of lung cancers occur in people under 45 years of age. The median age at diagnosis is 70 years. Over the years, lung cancer is still considered to be one of the causes of death cancer both to men and women.

Risks and factors of Lung Cancer


Smoking

Smoking is the primary cause of lung cancer. With over 4,000 chemical compounds Tobacco has, which have been shown to be cancer-causing or carcinogenic, contributes to the risk of having cancer. The risk of lung cancer increases depending on the number of cigarettes smoked and the time over which smoking.

Passive Smoking

Inhalation of tobacco smoke by nonsmokers also established risk factor for the development of lung cancer. Passive smoking has 24% increase in the risk of developing lung cancer. Estimated of 7,000 people died of lung cancer every year just because of passive smoking.

The following also contributes to the risk of developing lung cancer:


Exposure to asbestos fibers
Exposure to radon gas

Familial predisposition
Lung diseases
Prior history of lung cancer
Air pollution
Exposure to diesel exhaust

Types of Lung Cancer:


1. Adenocarcinomas are most commonly seen the type of lung cancer and also be observed even to nonsmokers. Arise in the outer areas of the lungs.

2. Bronchioloalveolar carcinoma is a subtype of adenocarcinoma. It commonly develops at multiple sites in the lungs.

3. Squamous cell carcinomas, also known as epidermoid carcinomas, arise most frequently in the central chest area in the bronchi.

4. Large cell carcinomas are the least common type of NSCLC.

5. Mixtures of different types of NSCLC also are seen.

6. Bronchial carcinoids are referred to as lung neuroendocrine tumors. It is a small tumor (3 cm-4 cm or less) when diagnosed and occurs most commonly in people under 40 years of age.

Health professionals diagnosed cancer through these procedures.


History and physical examination
Chest X-ray

CT (computerized tomography)

Low-dose helical CT scan

Magnetic resonance imaging (MRI) scans

Positron emission tomography (PET) scanning

Bone scan

Sputum cytology

Bronchoscopy

Chemotherapy

Needle biopsy

Thoracentesis

Major surgical procedures

Blood tests

Molecular testing

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The facts about Lung Cancer
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