a PET/CT overlay of UM-SCC1 bearing mice imaged with [18F]FBEM-cEGF. b Decay-corrected whole-body coronal microPET images of UM-SCC1 tumor–bearing mice at 30, 60, and 120 min after injection of 3.7 MBq (100 μCi) of [18F]FBEM-cEGF. Tumors are indicated by arrows. c Quantification of [18F]FBEM-cEGF uptake in UM-SCC1 tumor, liver, muscle, and kidney. Data are presented as mean %ID/g ± SD (n=4). d The tumor/muscle and tumor/liver ratios of [18F]FBEM-cEGF at different time points after tracer injection.