Lung cancer 문헌고찰

I. 서론

Lung cancer is one of the most significant public health challenges globally, representing a leading cause of cancer-related morbidity and mortality. The World Health Organization estimates that lung cancer accounts for approximately 8 million deaths annually, making it the most lethal form of cancer worldwide. The disease is characterized by the uncontrolled growth of abnormal cells in the lung tissues, leading to a variety of pathophysiological alterations and clinical manifestations. The two primary histological types of lung cancer are non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC), with NSCLC accounting for approximately 85% of cases. The distinctions between these types extend not only to their histological characteristics but also to their epidemiological profiles, treatment approaches, and prognoses. The etiology of lung cancer is multifactorial, with smoking being the most significant risk factor, responsible for approximately 85% of cases. Cig…