FIGURE 1. Sequential -images of mouse injected with ¹¹¹In-DTPA-C225. Mouse, which had A431 tumors (arrowheads) in chest and right hind limb, was administered 10 µg ¹¹¹In-DTPA-C225 through tail vein. Whole-body images were obtained 5 min and 6, 24, and 48 h after injection. Radioactivity was predominantly in liver (arrow) at 24 and 48 h after injection. Anterior views of mouse placed prone on camera’s pinhole collimator, with head pointing to top.