Fig. 4From: Retrospective audit of 957 consecutive 18F-FDG PET–CT scans compared to CT and MRI in 493 patients with different histological subtypes of bone and soft tissue sarcomaDistribution of the highest SUVmax values from each of 957 18F-FDG PET–CT scans within each sarcoma diagnostic sub-type in the primary lesion and following relapse (re-staging after primary treatment). High-grade sarcoma can have a propensity to relapse after primary (baseline) treatment (e.g. after surgery, radiotherapy and chemotherapy). The figure shows a comparison of the distribution of the highest SUVmax values per scan within subtypes, where there were also SUVmax values at relapse. The mean and 95% confidence intervals show non-significant differences (Non-parametric Mann–Whitney), but are suggestive of potential selection for higher-grade clones (higher SUVmax and altered confidence interval range) in relapseBack to article page