Fig. 12From: PET/CT and contrast-enhanced CT: making a difference in assessment and staging of patients with lymphomaMale patient 66 years old diagnosed and proven by histopathology as abdominal lymph nodal Non- Hodgkin lymphoma. a Axial contrast enhanced CT (CECT) showing sizable amalgamated paraaortic and mesenteric lymph nodes (red arrows) and peritoneal thickening (blue arrows). b Axial PET/CT showing avid FDG uptake of the amalgamated paraaortic and mesenteric lymph nodes (red arrows) and peritoneal thickening (blue arrows) previously seen on CECT. c Axial CT of skull base (bone window) showing no lesion could be detected. d Axial PET/CT showing avid FDG uptake of lymphomatous focal bone marrow lesion of the left side of the sphenoid bone (yellow arrow) not seen on CECTBack to article page