Wang L, et al. - This meta-analysis was performed to validate the efficiency of positron emission tomography (PET) modalities (including PET and PET/CT) in preoperative assessment of pancreatic cancer (PC) and compare them with computed tomography (CT). Compared with CT, PET/CT provides extensive possibility to avoid futile radical resection by detecting occult metastases of PC preoperatively. Researchers recommended surgeons, especially in developing countries, to take PET modalities as a routine preoperative assessment before making operative plan for PC patients.