PET/MRI Imaging in High-Risk Sarcoma: First Findings and Solving Clinical Problems

Figure 1

A 51-year-old male patient with rhabdomyosarcoma of the left thigh. Fused FDG PET/MR images before ((a)–(c)) and after chemotherapy ((d)–(f)). While the tumour size did not change significantly during chemotherapy ((d) and (e)), the FDG uptake is markedly reduced in comparison to the initial images ((a) and (b)). A light increase of FDG uptake is seen in some left inguinal lymph nodes; it did not change under chemotherapy ((c) and (f)), and the lymph nodes were proven to be benign by histology.