The results are also in concordance with those reported by Wong et al. [29], who showed that s.c. epidermal growth factor receptor-positive LS174T human colon cancer xenografts could be imaged using panitumomab F(ab')2 fragments labeled with 111In or 86Y. However, they compared low resolution planar γ-camera imaging with microPET. Here, EGFR is linked to colonic neoplasm.