Positron emission tomography (PET) scans are a common diagnostic tool used to detect cancer and other medical conditions. PET scans involve injecting a small amount of radioactive glucose into the body, which is then absorbed by cells and tissues. A special camera is used to detect the radioactivity and create images of the body. PET scans are generally considered to be safe, but some people have raised concerns about the potential link between PET scans and cancer.

Do Pet Scans Cause Cancer?

Radiation Exposure

PET scans involve exposure to a small amount of radiation. The amount of radiation exposure is typically very low, but it is still possible that it could damage cells and increase the risk of cancer. Some studies have found that people who have had multiple PET scans may have a slightly increased risk of developing cancer. However, the risk is still very small, and the benefits of PET scans typically outweigh the risks.

Cancer Cells

PET scans can sometimes detect cancer cells that are too small to be seen on other imaging tests. This can be helpful for diagnosing cancer early, when it is more likely to be curable. However, there is some concern that PET scans may also stimulate cancer cells to grow and spread. This is a theoretical risk, and there is no evidence to suggest that PET scans actually cause cancer.

Genetic Mutations

Some studies have found that PET scans can cause genetic mutations in cells. These mutations could potentially lead to cancer, although this is a very rare occurrence. The risk of genetic mutations from PET scans is generally considered to be very low, and the benefits of PET scans typically outweigh the risks.

Conclusion

The evidence suggests that the risk of cancer from PET scans is very low. The benefits of PET scans typically outweigh the risks, and they are a valuable tool for diagnosing cancer and other medical conditions.