Lung Cancer Research Paper

What are lung cancers? Lung cancers are the abnormal cells which grow in uncontrolled manner in one or both lungs. They do not function as normal lung cells and do not develop into healthy lung tissue. The abnormal cells can grow, form tumours and interfere with the normal functions of the lung (Lungcancer.org, 2015). Lung cancers can be divided into two major types, namely non-small cell lung cancers (NSCLC) and small cell lung cancers (SCLC). NSCLC can be further classified into three main subtypes, namely adenocarcinoma, squamous-cell carcinoma and large-cell carcinoma (Longo & Harrison, 2012). Lung cancers can be diagnosed by chest X-ray, computerised tomography (CT) scan, positron emission tomography-computerised tomography (PET-CT) scan, bronchoscopy and biopsy (Nhs.uk, 2015). Unfortunately, lung cancers are often diagnosed at the later stages. This is due to the unrecognisable symptoms and warning signs at the earlier stages. NSCLC are often diagnosed at stage IV which accounts for 30-40% of cases whereas 60% of SCLC is diagnosed at stage IV. Lung cancer usually originates from the cells lining the bronchi, bronchioles and alveoli. Carcinogens especially tobacco smoke will alter the gene expression of the normal human lung cells, resulting in cell mutation. The proto-oncogenes will be converted to mutated form, oncogenes. Mutation leads to the decreased expression of the tumour suppressor genes. This results in uncontrolled cell proliferation, cell

Lung cancer takes many years to develop. The characteristics of lung cancer the same as any type of cancer but it effects the lungs. Lung cancer is caused by expose to carcinogens

Lung Cancer, like any other type of cancer, is the uncontrollable growth of cells in the lung tissue. The main causes that contribute to lung cancer include inhaling carcinogens (basically, smoking), exposure to ionizing radiation, viral infections and even air pollution. These factors basically damage the tissues lining the bronchi in the lung, leading the cancer to develop further (Vaporciyan & Nesbitt JC, 2000). Primary lung cancers that develop in the epithelial tissues of the lung are known as carcinomas and claim the top spot in terms of leading cancer-related death causes. As of 2004, lung cancer

Causes: The foremost reason for lung cancer is cigarette smoking which causes around 90% of all deaths caused by lung cancer in the world. However, smoking is not the only way to get it. The second most frequent cause of lung cancer is exposure to radon gas, which

Lung cancer is a cancer that originates in the lungs. Lung cancer often goes undetected in the early stages, since symptoms don't usually present themselves until the advanced stages of the disease.

Lung cancer has multiple ways of impacting a body. This depends on the stage of lung cancer and when it becomes diagnosed. At early stages, lung cancer patients are often unaware that they have the disease. As the disease becomes more advanced, variable symptoms can develop. They often present with respiratory symptoms such as cough, shortness of breath, or blood with coughing. Common places

Lung cancer is a very common to be diagnosed with and harmful to anyone who is exposed to many resources around the world: smoking (first hand and second hand) and pollution. Any resource that is made up of chemicals that are exposed into the air that people breathe, give the risk of affecting others with lung cancer. However, since smoking is the most popular way to cause lung cancer, many people are exposed to it from either firsthand or second hand. First hand smoking is when the person being affected is indirect contact with the source that is giving off the toxins, while secondhand is when the one being affected is not directly connected to the main source. Either way the chemicals and toxins that come from harmful resources soon will build up and affect one’s normal body

Lung cancer is a tumor that affects either one or both of the lungs.A primary cancer begins in the lungs and a secondary cancer begins in another place in the body and makes its way up towards the lungs. Lung cancer is the 5th most common cancer. In Australia 59% of males were diagnosed were as 41% of Australian females were diagnosed.

Lung cancer occurs due to cells in a person’s lungs that multiple at a rapid pace, which form a malignant tumor. These tumors in the lungs take away important necessities such as oxygen, and nutrients; diminishes the ability of the tissue to properly function. One of the most type of common lung cancers is Adenocarcinoma, which make up to forty percent of these cases. Smoking is the primary reason for Americans to be diagnosed with lung cancer, with a cigarette containing more than 4,000 chemicals that have permanent damage to the lungs causing long term effects (Conrad 2016).

Lung cancer happens to be the top cause of deaths in the United States for both genders. It tends to people who smoke are at a higher risks for this type of cancer. Even people who are exposed to secondhand smoke are at risk. Others can get this cancer even if they aren't near smoke at all. Smoke is believed to cause lung cancer because it's damaging the cells that line the lungs. It causes cells to act abnormally.

The most common cause of lung cancer is smoking cigarettes. 80% of people who have lung cancer got it from smoking. The longer you smoke cigarettes the better chance of getting lung cancer. Smoking at a young age increases the chance of getting lung cancer more then starting to smoke as an adult. The sooner you quit, the better your life will be. Passive smoking (secondhand smoking) can give you lung cancer if exposed for a long time to it.

To start with, One of the major causes of Lung Cancer is smoking cigarettes. Cigarettes contain some deadly chemicals the causes multiple cancers. (According to Lynne Eldridge, MD 2016) “Smoking is responsible of ninety percent of Lung Cancer.” Any type of smoke is supposed to be inhaled especially cigarette smoke. Cigarette smoke causes more than just cancer. Smoking cigarettes can cause chronic bronchitis and also a recurring cough that you just can

The risks of you getting lung cancer are pretty slim if you don’t smoke. Smoking is the number one cause of lung cancer. One of the other risks of getting lung cancer is having a background of family members who had it but that is highly

Lung cancer is a malignancy that affects the functionality of the lungs. In the early stages of lung cancer there are hardly any symptoms than in the later stages where they begin to appear. Some of the symptoms that can appear is chest pain, a persistent cough, coughing up blood, weight loss, headaches, and wheezing.

Lungs are the pair of spongy, air filled organ located on the either sides of the chest. The functions of the lung is to provide oxygen to capillaries so they oxygenate blood. In the article by mayo clinic staff it states that, Lung cancer is the leading cause of cancer death in United States. Some of the symptoms of lung cancer includes shortness of breath, chest pain, weight loss, bone pain, wheezing, cough that doesn’t go away, changes in smoker’s cough, etc. Lung cancer is probably mainly caused by smoking. Mostly people who smoke and also people who quit smoking are most likely to be diagnosed with lung cancer. Doctors think that smoking causes lung cancer by damaging the cell that line the lungs. Cigarette smoke is the cancer causing substance and when you inhale the smoke it changes the tissues immediately.The two general types of the lung cancer