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This image represents a normal PET scan using glucose(sugar)labeled with the radioactive element, Fluorine-18. The 'radiolabeled' glucose shows up in organs using glucose (sugar) for metabolism. There is normal radiotracer uptake (dark areas) in the brain (black arrow), thyroid gland in the neck (red arrow), heart (yellow arrow), and urinary bladder (blue arrow).

Note: Images are shown for illustrative purposes. Do not attempt to draw conclusions or make diagnoses by comparing these images to other medical images, particularly your own. Only qualified physicians should interpret images; the radiologist is the physician expert trained in medical imaging.