Submitted by jennlara t3_10gjb3t in askscience
Bag-Weary t1_j55a9ne wrote
Reply to comment by freddythedinosaur1 in What color are cancer cells? by jennlara
Surgeons are guided by imaging devices like PET, CT and MRI scanners. You can use contrast agents to show areas of greater glucose metabolism, for instance, as cancer cells use energy faster than others for respiration and blood vessel construction, and draw a contour around that to be used in surgery and radiotherapy.
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