Cancer care: Lung cancerSkip section navigation
Lung cancer: What is it?
Lung cancer starts in the lungs. It is a tumor of abnormal cells that reproduce rapidly and do not grow into normal lung tissue. A lung cancer tumor can grow in one or both lungs.
There are two main types of lung cancer.
Malignant mesothelioma is an uncommon cancerous tumor of the lining of the lung and chest cavity (pleura) or lining of the abdomen (peritoneum) that is typically due to long-term asbestos exposure. Learn more about mesothelioma in our health library.
Lung cancer facts
Get more lung cancer facts from our health encyclopedia.
Source: American Cancer Society, All About Lung Cancer – Non-small Cell, All About Lung Cancer – Small Cell; National Comprehensive Cancer Network Clinical Practice Guidelines in Oncology™; Lung Program at the Virginia Piper Cancer Institute - Abbott Northwestern Hospital
Reviewed by: Katie Schwarzkopf, manager, Lung Program at the Virginia Piper Cancer Institute - Abbott Northwestern Hospital
First Published: 09/30/2009
Last Reviewed: 09/01/2011