Multiple choice Which of the following is INCORRECT concerning lung cancer in human beings? Nearly 40% of lung cancers are adenocarcinoma, which usually originates in peripheral lung tissue. In small-cell lung carcinoma (SCLC), the cells contain dense neurosecretory granules. Lung cancer staging is an assessment of the degree of spread of the cancer from its original source. In a suffer about 80-90% of small cell carcinomas have spread beyond the thorax at the time of diagnosis. The original lung cancer never spreads to other body parts. Reveal answer Fill a bubble to check yourself E Correct answer Explanation If the original lung cancer has spread, a person may feel symptoms in other places in the body. Common places for lung cancer to spread include other parts of the lungs, lymph nodes, bones, brain, liver, and adrenal glands.