HANOI UNIVERSITY FOUNDATION STUDIES DEPARTMENT —–o0o—– LUNG CANCER: Facts, symptoms, cause and treatment Teacher: Mrs. Hoang Yen Student: Vu Thi Lieu Class: 1C17 Course: Writing Date: February 17, 2018 ABSTRACT TABLE OFCONTENTS 1.
IntroductionThefirst wealth is health. However, Are yousure this wealth is safe and lasting long? Nowadays, Cancer becomes a burden of the whole world, especially in poorand developing country. In Viet Nam, the statistics of Union For Cancer Controlestimated that there are about 94,000 people died because of cancer. Lungcancer is the most popular cancer affecting both males and females.
It is theleading cancer of males and a major cancer of females. However, we could avoidthis serious disease absolutely and we also have many ways to fight with it. Thus,this paper base on secondary data , will discuss about facts, symptoms, causesand treatments of lung cancer2.Discussion of findings2.1.What is lung cancer?Accordingto Mayo Clinic (2017), lung is a significant organ in our body, includes twoparts: right lung and left lung. Lungs support us breathe. Air comes throughthe mouth to the lung.
Here, the air would be sponged, get rid of carbondioxide to hold oxygen. After that, oxygen would be given into blood vessel togo throughout the bodyAccordingto “what you need to know about lung cancer” (2012), normally, cells in lungsand other parts of body grow and separate to form new cells if they are needed.When normal cells become old or are damaged, they die and new cells wouldreplace. However, this process goes wrong sometimes.
New cells grow without theneed of the body or some cells still remain and they are not destroyed inprocess. The buildup of extra cells often forms a large of problem called adevelopment or tumor. At that situation, lung cancer cells can spread bybreaking away from a lung tumor.
They go throughout blood vessels or lymphvessels and cover all body. Gradually, abnormal cells develop at other organsin body such as kidneys, brain or heart. As Accordingto M.
Ratini (2016) lung cancer is divided into two types: small cell lungcancer (SCLC) and non-small cell lung cancer (NSCLC). This division is based onappearance of the tumor cells. Firstly, SCLC accounts for 10%-15% of lungcancers. It has close relationship with cigarette smoking. SCLCs metastasizerapidly to other organs in the body and most are discovered after spreadingextensively. Secondly, NSCLC is the most common, with 85% of all cases.
Basedon different type of cells founded in tumor, NSCLC is divided into three maintypes: Adenocarcinomas, squamous cell carcinomas and large cell carcinomas. Accordingto Cleveland Clinic (2014), there are also other cancers such as small celllung cancer, rare cancers of the chest or mesothelioma.2.2 What are symptoms of lung cancer?Accordingto Cleveland Clinic (2014), lung cancer experiences three main stages. At twofirst stages localized and regional, the cancer is confused and spread to lymphmoles.
At third stage of lung cancer called distant it spreads to other partsof body. According to The World HealthOrganization, about 85% lung cancer patients discover this disease at laststage of lung cancer. It takes severalyears for lung cancer develop until the disease is advanced. However, most ofpeople don’t recognize its symptoms because they are very common such as: Coughing, especially it stay persistent, becomes intense or even coughing up blood Shortness of breath A change in colour or volume of sputum Changes in your voice Harsh sounds Headaches, bone or joint pain Loss of weight General sickness Bone problems without accidents Exhaustion Facial swelling Shortage of bloodAccordingto Deborah (2017)Thesesigns seem very common. In particular, at first stages, these are unclear tillcancer becomes more seriously. That is reason why almost patients suffer frombad status at last stages, which makes treatment impossible2.3.
What are causes of lung cancer? Lungcancer is one of the most serious diseases that still not have drugs to cureabsolutely or vaccine to against. The risk of lung cancer may increase due to anumber of factors. Risk factors for lung cancer include: Smoking: as a report by Martin (2017) smoking is strongly correlated with lung cancer, with about 90% of lung cancer growth because of tobacco using.
Tobacco smoke holds over 7,000 chemical compounds and many of them are main causes of cancer or carcinogenic. Moreover, if you do not smoke, passive smoking also can increase the risk of developing cancer because the smoke also contains a large of toxic substances. This below chart shows the link between cigarette smoking and lung cancer.Centers for disease control and prevention (2010) The chart depicts process about serious effect of smoking to the body.
People can see that smoking with toxic substances such as carcinogenspersistent develop over a long period to become cancer Hazardous substances: radon gas is the most dangerous substances. Radon gas exists in nature as a decay product of uranium. According to Melissa (2016), 12% of lung cancer deaths are consequences from gas and about 21,000 lung-cancer-related deaths. Radon gas can cover the soil and enter our home through some ways such as drain, pipes, or other openings. there are many other substances leading to lung cancer such as asbestos, arsenic, beryllium, cadmium, coal products, nickel compounds, mustard gas and so on. These could exist around chemical factories, nature environment or even air pollution Spreading of lung cancer through generations: as Center for disease (2017), it is easier to suffer from lung cancer if there is survival of lung cancer cells in the body. Especially, when smoking or live and work at danger substances. 2.
4. What are effects and treatmentsof lung cancer?Lungcancer is serious disease. According to Hoang Dinh Chan (2015), about 90%patients have died after a year from diagnosed with lung cancer. In fact, thedevelopment of lung cancer lasts in a long period but the first symptoms issimilar to other common diseases. That is reason why 80% patients diagnosed atlast stages (Luu Van Nam, 20215). At last stages, tumor cells develop quicklyand spread to others organ. This affects to the whole body, the health increaserapidly. Patients will feel tired and painful.
In addition, their family is alsoworried and spends a lot of money for treatment