Improving recognition of hepatic perivascular epithelioid cell tumor: Case report and literature review

Figure 1 Computed tomography of the liver. A: The entire mass was visualized as low density on non-contrast computed tomography (CT); B: Contrast-enhanced CT showed a strongly enhanced mass in the arterial phase, and the center of the mass was weakly enhanced; the internal component-like structure showed relatively strong enhancement with a blotchy vascular pattern within the tumor (arrowhead) and distorted vessels (arrow); C and D: The portal (C) and late (D) phase CT scans showed washout of the contrast medium, and a portion of the internal area was weakly enhanced.