<div><sup></sup></div><div><b>1. INTRODUCTION</b></div><div><b>Lung Cancer</b></div><div>Lung cancer is also called lung carcinoma, is a threatening lung tumor
characterized by uncontrolled cell development in tissues of the lung.
This development can spread past the lung by the cycle of metastasis
into close by tissue or different parts of the body. Most cancers that
start in the lung, known as primary lung cancers, are carcinomas
[1]. The two primary sorts are small-cell lung carcinoma (SCLC) and
non-small-cell lung carcinoma (NSCLC). The most well-known
manifestations are cough (coughing up blood), weight reduction,
windedness, and chest pain.</div><div>By far most (85%) of instances of lung cancer are because of long-haul
tobacco smoking. Around 10–15% of cases happen in individuals who have
never smoked [2]. These cases are regularly brought about by a mix
of genetic factors and introduction to radon gas, asbestos, recycled
smoking, or different types of air contamination Lung cancer might be
seen on chest radiographs and computed tomography (CT) scans. The
conclusion is affirmed by biopsy which is generally performed by
bronchoscopy or CT-direction [3].</div><div>Shirking of danger factors, including smoking and air contamination, is
the essential technique for avoidance. Therapy and long haul results
rely upon the kind of cancer, the stage (level of spread), and the
individual’s general wellbeing. Most cases are not reparable. Normal
medicines incorporate medical procedures, chemotherapy, and
radiotherapy. NSCLC is here and there treated with surgery, while SCLC
typically reacts better to chemotherapy and radiotherapy [4].</div><div>Worldwide in 2012, lung cancer happened in 1.8 million individuals and
brought about 1.6 million passings. This makes it the most widely
recognized reason for cancer-related passing in men and second generally
basic in ladies after breast cancer. The most widely recognized age at
analysis is 70 years. In the United States, five years endurance rate is
19.4% while in Japan it is 41.4%. In developing countries, the average
results are worse [5].</div><div><b>Lung Cancer types</b></div><div>The following figure 1 shows the types of lung cancer.</div>