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PET imaging of MC1R expression using an 18F-labeled α-MSH analog. a)The chemical structure of the PET tracer. b) Decay-corrected coronal PET images of mice bearing B16F10 (high MC1R expression) or A375M (low MC1R expression) melanoma tumor (arrows) at 1 h post-injection. Adapted from (Cheng et al 2007b).
