¹⁸F-FDG PET/CT Findings in Portal Vein Thrombosis and Liver Metastases

(A and B) Maximum-intensity-projection image of ¹⁸F-FDG PET/CT (A) and axial PET image (B) demonstrate geographic intense hypermetabolic activity within left hepatic lobe and posterior segment of right hepatic lobe (white asterisks) from PVT. Patchy uptake of ¹⁸F-FDG is noted in anterior hepatic segment (black arrow), which is atypical for metastases. (C) Axial contrast-enhanced CT (portal phase) shows congruent areas of hypoattenuation (black asterisks) and abrupt termination of left portal vein (white arrowhead) and posterior right portal vein (black arrowhead) from thrombosis. Incidental focal ¹⁸F-FDG activity in left lower chest on maximum-intensity-projection image was from pulmonary inflammation.