MRI confirms a voluminous subcapsular liver mass involving segments 2 (mostly) & 3. This mass is iso-intense to the parenchyma on pre-contrast T1 & T2 weighted images. It enhances avidly on the arterial phase and shows a central, non enhancing, scar. On T1 C+ late phase, the mass is iso-intense to the liver parenchyma, and on the 10 minutes late phase, the central scar enhances frankly.
The findings are typical of focal nodular hyperplasia.