Diagnosing lung cancer

After a physical examination, your doctor will tell you how to prepare for specific tests, such as: Imaging tests : An abnormal mass can be seen on X-ray, MRI, CT, and PET scans. These scans produce more detail and find smaller lesions. Sputum cytology : If you produce phlegm when you cough, microscopic examination can determine if cancer cells are present. A biopsy can determine if tumor cells are cancerous. A tissue sample can be obtained by: Bronchoscopy : While under sedation, a lighted tube is passed down your throat and into your lungs, allowing closer examination. Mediastinoscopy : The doctor makes an incision at the base of the neck. A lighted instrument is inserted and surgical tools are used to take samples from lymph nodes. It’s usually performed in a hospital under general anesthesia. Needle : Using imaging tests as a guide, a needle is inserted through the chest wall and into th...