Summary box nº 8 • 2-[18F]FDG PET/CT is useful to detect the site and extent of recurrence when conventional imaging methods are equivocal (I-85%/A-100%) • 2-[18F]FDG PET/CT can be recommended: o In patients with signs or symptoms suggestive of metastatic disease (I-92%/A-100%) o In patients with rising serum tumour markers (II-92%/B-85%) o To guide site of biopsy (IV-100%/D-100%) o To improve RT planning (III-100%/C-100%) • 2-[18F]FDG PET/CT can substitute for CT and/or bone scan in the detection of bone metastases (II-100%/B-100%)

The parenthesis contains the level of evidence—percentage of agreement/grade of recommendation—percentage of agreement for each statement.