Is a cough, that is caused by lung cancer produce a irritating sensation in the throat thus invoking the cough.

A lung cancer: Cough may be caused by bronchial irritation, by the tumor, pleural fluid, or the cough of chronic bronchitis/emphysema from decades of smoking. The throat is only involved by aiding to expectorate the produced phlegm.

NO: Lung cancer can be associated with chronic cough, blood in sputum, weight loss etc. Irritating sensation in the throat can be due to multiple causes. If you are a smoker the first thing to do is to stop. If your cough doesn't go away in two weeks you need to see a doctor.