Dr. Patel explains what a physician is looking for when he/she orders a CT scan to diagnose lung cancer.
So we look for abnormalities on a CT scan. On a CT scan, your lung should be filled with air and free of particles and maybe just some blood vessels. When we see a tumor, it is obscuring the black part of the lung; it's occupying space. We are looking to see if lymph nodes are involved or enlarged, or if there is evidence that the cancer has gone anywhere else.
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