Sometimes a cough isn't just a cough, especially if you are a smoker. The sad truth is that one of the early signs of lung cancer does involve a cough; and smokers make up a significant portion of lung cancer patients. With an estimated rate of 219,000 new cases for 2009, people should be aware of the early signs and symptoms associated with lung cancer.
Lung Cancer and Statistics
As with most cancers, there is no known direct cause for lung cancer. Statistical evidence does show that smokers account for 85 percent of diagnosed cases. The Cancer Organization website states that 29 percent of all cancer deaths in 2009 will be related to lung cancer. But if lung cancer is caught in the early stages, survival rates are much higher. It is suggested that if you are a smoker or have a history of cancer in the family, you should get examined if these early signs begin to appear.
Stage 1 Symptoms
At Stage 1, a small tumor less than 3 centimeters long might be found anywhere in the lung except for the main bronchial tubes. A tumor this size might not be felt by the patient. Beginning symptoms might be a small, persistent cough and slight chest pain, depending on the location of the tumor.
Stage 2 Symptoms
At Stage 2, the tumor might have grown and put more pressure on the affected area or grown into the chest wall. The surrounding lymph nodes might also be affected. The symptoms might be more apparent. The cough can persist and turn into a wheeze. For nonsmokers, this can extend for up to two weeks. More mucus can also come up, along with shortness of breath and some chest pains.
Calcium
Sometimes lung cancer cells have accompanying symptoms that affect the patient. These cells tend to produce adrenocorticotrophic hormones, which cause a secretion of cortisol. This secretion leads to an increase of calcium in the bloodstream. This can lead to kidney stones, lack of appetite and general weakness.
Serious Symptoms
If these early symptoms exist for more than three weeks without treatment, symptoms of Stage 3 lung cancer can begin. The mucus in the cough could start to change color and even involve blood. If the tumor has grown, it can put pressure on surrounding nerves, causing numbness in the arm or neck. Repeated cases of bronchitis and lung infections can also be a sign.
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