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What is lung cancer?

Lung cancer is when cells in the lung replicate uncontrollably and form tumors, which are masses of abnormal cells, inside the lung. The cancer can then sometimes spread to other parts of the body.

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About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.9 out of 5
Votes: 803 (Click smiley face below to rate)
Category: Chronic obstructive pulmonary disease


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