Fig. 2
a Images in a 57-year-old male with ccRCC demonstrate left renal vein tumor thrombus (red arrows), with VTT SUVmax of 4.5 (left image: anterior maximum intensity projection image obtained at 18F-FDG PET; right upper image: axial contrast-enhanced MRI image; right middle image: axial contrast-enhanced CT image; right lower image: axial fused PET/CT image). b Images in a 55 year-old male with ccRCC demonstrate left renal vein tumor thrombus (red arrow), inferior vena cava tumor thrombus (blue arrow), and tumor thrombus in the right atrium (green arrows), with VTT SUVmax of 5.7 (left image: anterior maximum intensity projection image obtained at 18F-FDG PET; right upper image: axial contrast-enhanced MRI image; right middle image: axial contrast-enhanced CT image; right lower image: axial fused PET/CT image)