About Lung Cancer
Lung cancers are also known as bronchogenic carcinomas. This kind of cancer is broadly classified into two types, according to their appearance under the microscope. The most common type are small cell lung cancers, this kind of cancer is highly associated with smoking. Non-small cell lung cancer is an umbrella term for several types of lung cancers that behave in a similar way. Non-small cell lung cancers include squamous cell carcinoma, adenocarcinoma and large cell carcinoma.
Signs and symptoms of Lung Cancer may include:
- A new cough
- Changes in a chronic cough or “smoker’s cough”
- Coughing up blood, even a small amount
- Chest pain
- Wheezing and shortness of breath
- Repeated respiratory tract infections
- Unexplainable weight loss
- Bone pain
Causes of Lung Cancer
Smoking is the single major cause of Lung cancer, and the risk of developing lung cancer increases according to the length of time and number of cigarettes you have smoked. However, there are additional risk factors for developing this disease. A family history of lung cancer will increase the likelihood of developing cancer, as well as excessive alcohol consumption. In addition, certain lung diseases, such as chronic obstructive pulmonary disease may increase the risk of developing lung cancer.