“ is an uncontrolled, extremely deadly division of cells in the lung” (World Book, “”). The two major types of include small and non-small cell. Many different risk factors contribute to . There are numerous symptoms that are difficult to detect in the early stages of . Doctors use special machines to detect the severity of each stage. Treatments and cures differ in each individual case. is a huge problem because it is the leading cause of cancer death in both men and women (Microsoft, “”). Both sm ....