What is the likelihood that an asymptomatic, 2 cm, solitary pulmonary nodule seen on chest X-ray in a 70-year-old smoker is a malignancy?
A. 25%Lung cancer is the leading cause of cancer-related death in patients older than 70 years. The peak incidence is between 75 and 79 years. Non-small-cell lung cancer accounts for roughly 80% of all cases. In cases of resectable primary lung cancer, resection remains the treatment of choice, with an expected survival of almost 3 years.