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Pneumonia is inflammation (swelling) of the tissue in one or both of your lungs.
Our Health A-Z contains more information on Chest infection.
If you are worried about this condition you can try our free AI Symptom Checker here.
Lung cancer is one of the most common and serious types of cancer.
Our Health A-Z contains more information on Lung cancer.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.