Lung tumors may be
Metastatic from other sites in the body
Primary tumors of the lung may be
The most common lung cancer is non–small cell lung cancer (see Lung Carcinoma Lung Carcinoma Lung carcinoma is the leading cause of cancer-related death worldwide. About 85% of cases are related to cigarette smoking. Symptoms can include cough, chest discomfort or pain, weight loss... read more ).