Diagnosing Lung Cancer
A chest X-ray will often reveal a tumor and where it is located. Other tests, such as CT scans and PET scans, can provide more detailed information.
To be certain if you have lung cancer, tissue from your lung will be removed and analyzed. This is called a biopsy.
The biopsy may be done during a bronchoscopy, a test where a flexible tube with a light is inserted into your nose or mouth to look at the airways of the lungs.
A biopsy may also be done with a needle inserted through the skin directly into the tumor under CT guidance.