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NCCN QUICK GUIDE
Lung Cancer Screening, Version 1.2017
What is a LDCT (low-dose computed tomography)?
LDCT takes many pictures of the inside of your body from
different angles using x-rays.19
The amount of radiation used is much lower than standard doses
of a CT (computed tomography) scan.19
If you are high risk for lung cancer you will have a LDCT test. Your
doctor will check for anything abnormal like a lung nodule.23
Screening with LDCT is used to find nodules in the lungs. Nodules
are small, round areas of abnormal tissue.22
What happens after the first screening LDCT?
Your doctor will compare your second screening test to the
first screening test and decide when the next follow-up test will
Follow-up screening is done to check on your lungs at certain
time points like months or years.26
How can I know for sure it’s lung cancer?
Biopsy or surgery
To test for cancer, tissue from the nodule must be removed from
your body. A biopsy removes a small samples of tissue. Surgery
removes the entire nodule for testing.34
How do I decide between options?
Ask your doctors many questions. Also, you could get a second opinion, learn more about
screening tests, and compare the pros and cons.41
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