... 60,514 cases of invasive lung cancer involving all races and both sexes obtained from the data for 1983–1987 of the Surveillance, Epidemiology, and End Results (SEER) Program of the National ... represents one lung cancer case for every 3 million cigarettes smoked. Thus, primary carcinoma of the lung is a major health problem with a generally grim prognosis. Pathology The term lung cancer ... tumors arising from the respiratory epithelium (bronchi, bronchioles, and alveoli). Mesotheliomas, lymphomas, and stromal tumors (sarcomas) are distinct from epithelial lung cancer. Four major...