Pedunculated hepatic adenoma
Patient presented with right upper quadrant abdominal pain. Previous ultrasound study (images not available) showed a mass in right flank that has a liver connection by vascular pedicle.
CT Abdomen and pelvis
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There is a large hypervascular and encapsulated mass under and connected to the liver.
The enhancement usually does not persist in adenomas because of arteriovenous shunting. Larger hepatocellular adenomas may be more heterogeneous than smaller lesions, like this one.
On arterial-phase CT scan it is possible to spot the mass with large penetrating vessels.