Chapter 6 – Colorectal Cancer

Colorectal cancer is the third most common type of malignancy worldwide. In addition to clinical information, benign findings and pitfalls in FDG PET/CT reading, and teaching cases, this chapter reviews evidence-based recommendations regarding PET/CT examination in colorectal cancers and compares them with statements in major clinical guidelines. According to evidence-based data, FDG PET/CT is appropriate for staging of stage IV disease, ruling out or detecting synchronous metastases, and restaging of patients, especially in cases of rising tumor markers or clinical suspicion of recurrence but equivocal findings on conventional imaging modalities.