Lung Cancer Symptoms And Signs

How They Could Be Treated?

By: - Lung Cancer - February 17, 2011
lung cancer symptoms and signs

Lung cancer is a type of cancer that is characterized by abnormal cell growth in the lung tissues. This abnormal cell proliferation forms a mass, which is referred as a tumor. When the tumor reaches the malignant stage it spreads to other areas beyond the lungs. As of 2004, lung cancer was found to cause the most deaths of any form of cancer for both sexes, The majority of lung cancers are carcinomas, which consist of transformed epithelial cells.

Lung cancer is classified into two types based on the appearance of tumor: small cell (SCLC) and non-small cell (NSCLC). NSCLC is usually treated with surgery. SCLC is treated with chemotherapy and radiation. SCLC comprises about 80% of all cases of lung cancer.

The primary cause of lung cancer is tobacco smoking. It accounts for 75% of all lung cancer cases. The occurrence of lung cancer in non-smokers is primarily due to genetic factors such as exposure to radon gas, asbestos and polluted air.

Lung cancer symptoms and signs include:
• Shortness of breath: As the tumor spreads into the airflow it obstructs breathing.
• Coughing of blood: Lung cancer patients suffer from bleeding of blood in the air passages, which is eventually coughed up.
• Severe coughing
• Change in the sweating pattern and pain in the muscles of the eye and arms, which is due to the spreading of the tumor into the sympathetic nervous system.
• Patients also suffer from non-specific symptoms such as fever, bone pain and weight loss.
• In elderly people lung cancer causes comorbid illness where patients suffer from one or more diseases or disorders.
• Patients initially suffer from paraneoplastic phenomena, which include hypercalcemia, Lambert-Eaton myasthenic syndrome, and syndrome of inappropriate antidiuretic hormone.
• A common site where tumor usually spreads is brain, lungs, trachea, liver, and kidneys.
It has been found that approximately ten percent of lung cancer cases are symptom less and are typically detected during a chest x-ray.

Lung cancer treatment
The treatment for lung cancer depends on the cell type, stage of the disease and the patient’s response to treatment. It is more commonly treated with palliative care, lung cancer surgery such as video-assisted thoracoscopic surgery and VATS labectomy, chemotherapy such as adjuvant chemotherapy, photodynamic therapy, and radiotherapy.
Generally a 5-year survival rate is seen when patients in the primary stage undergo lung cancer treatment.

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