Lung tumors may be
Primary
Metastatic from other sites in the body
Primary tumors of the lung may be
Malignant (see table Classification of Primary Malignant Lung Tumors Classification of Primary Malignant Lung Tumors
) Benign (see table Classification of Benign Lung Tumors Classification of Benign Lung Tumors
)
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 
).
Table
Table
