Miriam Kalamian,

Dietary Therapies LLC

FDG-PET scan of a woman with colon cancer. Heart, bladder, kidneys and brain take up a great deal of glucose so they show up as bright areas. The smaller shadow images in the abdomen are also lit up, alerting the medical team that cancer has spread to the liver.

"PET-MIPS-anim" by Jens Maus (http://jens-maus.de/)

Licensed under Public Domain via Wikimedia Commons

FDG-PET imaging uses a radioactive glucose analog tracer to look for cancer. Why? Because cancer loves glucose.

PET Imaging