Preoperative 18F-FDG PET/CT Associated with Pathological Tumor Grade in Pseudomyxoma Peritonei

The clinical effectiveness of preoperative 18F-FDG PET/CT in predicting pathological tumor grade in patients with pseudomyxoma peritonei (PMP) originating from the appendix was evaluated in this retrospective cohort study. The study found that high-grade PMP patients had a significantly higher median standardized uptake value (SUVmax) on 18F-FDG PET/CT compared to low-grade patients. The highest area under the curve was 0.81, suggesting that SUVmax could serve as a reliable indicator for predicting pathological grade in PMP cases.