Lung cancer is an illness.
Lung cancer , also known as lung carcinoma , is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung .	lung tumor	lung tumor	cell growth	cell growth	tissues	tissue (biology)	lung	lung	cancer	cancer
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body .	cell growth	cell growth
The tissue of the lungs can be affected by a number of diseases , including pneumonia and lung cancer .	tissue of the lungs	parenchyma	number of diseases	respiratory disease	pneumonia	pneumonia	lung cancer	lung cancer
