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Regenerating nodules in arteriohepatic syndrome: a case report

Departments of ¹ Medical Imaging and ² Pathology, University Health Networks and Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada

Correspondence: Dr Khalili, Department of Medical Imaging, Toronto General Hospital, 585 University Department of Medical Imaging, 610 University Avenue, Toronto, Ontario, Canada M5G 2M9. E-mail: korosh.khalili{at}uhn.on.ca

We report the multimodality imaging features of two cases of arteriohepatic syndrome (AS) complicated by a regenerating nodule. CT, ultrasound and MRI revealed nodular liver lesions with cirrhotic and portal hypertension changes. A large mass identified in both cases appeared hyperdense on unenhanced CT, hypointense on T₂ weighted imaging and showed normal-appearing hepatic vasculature coursing through the lesion in all contrast-enhanced imaging, highly suggestive of a regenerating nodule. Knowledge of this entity is quite important as patients with AS are also predisposed to hepatocellular carcinoma.