Fig. 25.25
 Metastatic carcinoid tumour. 
111In octreotide scans taken at images (a) and (b). Note that on the delayed images the target to (a) 10 minutes, (b) 4 hours and (c) 21 hours show uptake in the metastases background ratio improves. . Excreted activity is seen in the lower part of urinary bladder.