FIGURE 3.

FDG-PET (A), fused PET/MRI (B), and CET1-weighted VIBE MRI (C). Example of a false positive on PET/MRI in a 55-year-old female with metastatic sigmoid colon adenocarcinoma. There is no focus of increased FDG uptake on PET. However, there are some areas of linear thickening and enhancement of the peritoneum on the postcontrast T1-weighted VIBE sequence (arrows in C), which raised suspicion of peritoneal carcinomatosis. These findings regressed on CE-MRI follow-up 5 months later (not shown). VIBE; volumetric interpolated breath-hold examination.