| Lung cancer is a disease in the lungs which is caused | | | | lung cancer death chance than those usual cigarette |
| by rapid development and division of immature cells | | | | smokers. |
| that are present inside the lungs. Lung cancer is also | | | | On the other hand, for the secondhand smokers |
| known as bronchogenic cancer and is regarded as | | | | namely those who are exposed to secondhand |
| histologic. | | | | smoking, radon and asbestos or who have within their |
| Normally, the lungs have the capability to repair tissues | | | | family a history of lung cancer may contribute to the |
| which are affected or destroyed through the process | | | | development of the disease. |
| of producing normal and healthy lung cells. The | | | | Smoking is one of the definite answers why lung |
| moment abnormal growth and division of cells which | | | | cancer begins. Majority of these patients have similar |
| are immature speeds up, a mass or tumor is formed | | | | smoking lifestyle that is uncontrollable and is difficult to |
| and this could be the beginning of lung cancer. | | | | manage. Without proper rehabilitation from smoking, |
| A tumor can either be benign or malignant. If the tumor | | | | the person is at high risk to becoming a candidate for |
| is benign, it is usually stranded in one area and is | | | | the disease. |
| encapsulated. | | | | Lung cancer would usually begin with the exposure or |
| A benign tumor has no intention of invading the tissues | | | | usage of different cancerous substances. If exposed |
| surrounding it. On the other hand, if the benign tumor | | | | for quite some time, lung cells begin to react with the |
| begins to grow and is currently spreading to the | | | | stimulus or chemical which is suspended inside it. |
| tissues and organs, it is now called as malignant or is | | | | Though describing the pathophysiology may have a lot |
| undergoing a cancerous stage. Once the cancerous | | | | of complexities, it is not completely emphasized by |
| cells break free, it now travels to the different body | | | | researches and tests. All that is revealed are the risk |
| parts like the bones, lymph nodes, brain and liver, it is | | | | factors and main reasons why there is irregular and |
| now termed as metastasis. There the cancer cells will | | | | abnormal growth in the lung cells which leads to the |
| have the capacity to grow and reproduce. | | | | disease. |
| The number one cause of lung cancer is smoking | | | | Answering 'how does lung cancer begin' is not clearly |
| which made up the 80% of deaths in men and 75% of | | | | given and understood. Genes that are influenced by |
| deaths in women. The risk of getting cancer depends | | | | the pathogenesis of the cancer tends to produce |
| on how early a person is exposed to smoking or how | | | | proteins which involves cell differentiation, apoptosis, |
| many cigarettes are smoked per day although, there | | | | tumor progression, cell cycle processes, angiogenesis |
| are studies which show that lower death rates are | | | | and regulation of immunity. The moment these |
| obtained out of the individuals who smoke using a | | | | manifestations are experienced by the lungs, then it is |
| low-nicotine brand and a cigarette filter. | | | | inevitable that the affected lung may have to undergo |
| People who were once smokers and decided to quit it | | | | multiple treatment modalities in order to get the best |
| has a lower risk of having lung cancer. For those who | | | | results. |
| are into smoking cigars and pipes, they have a higher | | | | |