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A Recanalized Umbilical Vein Hypermetabolic Thrombosis Mimicked an Hepatocellular Carcinoma Recurrence: A New
Thibault Fidani1, Guillaume Desmarets1, Jean Goupil2
1From the Departments of Nuclear Medicine.
Abstract:
A transarterial left hepatic artery radioembolization involving 90Y microspheres was performed on a cirrhotic man with hypermetabolic 18F-FDG segment III hepatocellular carcinoma. During the 18F-FDG PET/CT follow-up, the disappearance of the hypermetabolic lesion was initially observed. Then, a focal segment III hypermetabolism reappeared mimicking a recurrence before disappearing without any treatment. Finally, the hepatic MRI demonstrated that the transitory segment III hypermetabolism matched a thrombus of the dilated recanalized umbilical vein.

