Findings of non-pathologic perfusion defects by CT arterial portography and non-pathologic enhancement of CT hepatic arteriography

Figure 1 CTAP image obtained in a 42-year-old man with recurrence of HCC shows two tumors in right lobe. The peripheral wedge-shaped perfusion defect is non-pathologic perfusion defect, confirmed by biopsy.

Figure 2 CTHA image obtained in a 45-year-old man shows a small round peripheral enhancement in right lobe which is non-pathologic enhancement. No tumor is found in the operative pathology.