Not all cases are due to smoking but the passive smoking can cause lung cancer
SYMPTOMS OF LUNG CANCER
Cough , haemoptysis and weight expiration are the commonest presenting factors .With intrathoracic spread dyspnoea and dresser pain occur.Patient may present with symptoms related to metastases or as a result of hormonal symptoms e.g.ADH or ACTh for small radiophone carcinomas ,and PTH for squamous radiophone carcinoma.Clubbing and hypertrophic pulmonary osteoarthropathy may occur.Metastases become to regional lymph nodes, liver ,bone,brain,and occasionally to adrenal glands.
If the cancer grows in the airway, it haw obstruct airflow, feat breathing difficulties. This can lead to accumulation of secretions behind the blockage, predisposing the enduring to pneumonia. Many lung cancers have a flush murder supply. The surface of the cancer haw be fragile, leading to bleeding from the cancer into the airway. This murder haw subsequently be coughed up.
Depending on the type of tumor, so-called paraneoplastic phenomena haw initially attract attention to the disease. In lung cancer, these phenomena haw allow Lambert-Eaton myasthenic syndrome (muscle weakness cod to auto-antibodies), hypercalcemia, or syndrome of inappropriate antidiuretic hormone . Tumors in the top (apex) of the lung, famous as Pancoast tumors, haw assail the local part of the sympathetic troubled system, leading to denaturized sweating patterns and receptor hooligan problems (a combination famous as Horner's syndrome) as substantially as hooligan weakness in the safekeeping cod to invasion of the brachial plexus.
PREVENTION
Prevention is the most cost-effective means of fighting lung cancer. While in most countries industrial and husbandly carcinogens has been identified and banned, baccy respiration is ease widespread. Eliminating baccy respiration is a primary goal in the prevention of lung cancer, and respiration cessation is an important clogging tool in this process. Most importantly, are prevention programs that target the young. In 1998 the Master Settlement Agreement entitled 46 states in the USA to an period payout from the baccy companies. Between the settlement money and baccy taxes, each state's public upbeat department funds their prevention programs, although hour of the states are living up to the Center for Disease Control's recommended turn by spending 15 proportionality of baccy taxes and settlement revenues on these prevention efforts.
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